diff --git a/src/game/game_02cde0.c b/src/game/game_02cde0.c
index fda54a2bc..f9ede2eea 100644
--- a/src/game/game_02cde0.c
+++ b/src/game/game_02cde0.c
@@ -224,7 +224,7 @@ glabel var7f1a8a84
 /*  f02cf2c:	ac82000c */ 	sw	$v0,0xc($a0)
 /*  f02cf30:	afa30050 */ 	sw	$v1,0x50($sp)
 .L0f02cf34:
-/*  f02cf34:	0c008b49 */ 	jal	func00022d24
+/*  f02cf34:	0c008b49 */ 	jal	modelCalculateRwDataLen
 /*  f02cf38:	8fa40050 */ 	lw	$a0,0x50($sp)
 /*  f02cf3c:	8fa9001c */ 	lw	$t1,0x1c($sp)
 /*  f02cf40:	8fac0050 */ 	lw	$t4,0x50($sp)
@@ -314,7 +314,7 @@ glabel var7f1a8a84
 /*  f02d088:	00402025 */ 	or	$a0,$v0,$zero
 /*  f02d08c:	afa40054 */ 	sw	$a0,0x54($sp)
 .L0f02d090:
-/*  f02d090:	0c008b49 */ 	jal	func00022d24
+/*  f02d090:	0c008b49 */ 	jal	modelCalculateRwDataLen
 /*  f02d094:	8fa40054 */ 	lw	$a0,0x54($sp)
 /*  f02d098:	8fab0050 */ 	lw	$t3,0x50($sp)
 /*  f02d09c:	8fac0054 */ 	lw	$t4,0x54($sp)
diff --git a/src/game/game_091e10.c b/src/game/game_091e10.c
index 265f8f15e..3f6bb43b8 100644
--- a/src/game/game_091e10.c
+++ b/src/game/game_091e10.c
@@ -202,7 +202,7 @@ bool propLoad(s32 propnum)
 {
 	if (g_ModelStates[propnum].filedata == NULL) {
 		g_ModelStates[propnum].filedata = fileLoad(g_ModelStates[propnum].fileid);
-		func00022d24(g_ModelStates[propnum].filedata);
+		modelCalculateRwDataLen(g_ModelStates[propnum].filedata);
 		return true;
 	}
 
diff --git a/src/game/game_097ba0.c b/src/game/game_097ba0.c
index 4f2fb9e91..75b6e4bba 100644
--- a/src/game/game_097ba0.c
+++ b/src/game/game_097ba0.c
@@ -10134,7 +10134,7 @@ glabel func0f09e144
 /*  f09e404:	964415b2 */ 	lhu	$a0,0x15b2($s2)
 /*  f09e408:	0fc59ca0 */ 	jal	fileGetSize
 /*  f09e40c:	964415b2 */ 	lhu	$a0,0x15b2($s2)
-/*  f09e410:	0c008b49 */ 	jal	func00022d24
+/*  f09e410:	0c008b49 */ 	jal	modelCalculateRwDataLen
 /*  f09e414:	02202025 */ 	or	$a0,$s1,$zero
 /*  f09e418:	0fc5cbd5 */ 	jal	func0f172f54
 /*  f09e41c:	02002025 */ 	or	$a0,$s0,$zero
@@ -10377,7 +10377,7 @@ glabel func0f09e144
 /*  f09c310:	968415b2 */ 	lhu	$a0,0x15b2($s4)
 /*  f09c314:	0fc586ed */ 	jal	fileGetSize
 /*  f09c318:	968415b2 */ 	lhu	$a0,0x15b2($s4)
-/*  f09c31c:	0c008f6f */ 	jal	func00022d24
+/*  f09c31c:	0c008f6f */ 	jal	modelCalculateRwDataLen
 /*  f09c320:	02602025 */ 	or	$a0,$s3,$zero
 /*  f09c324:	0fc5b6fb */ 	jal	func0f172f54
 /*  f09c328:	02002025 */ 	or	$a0,$s0,$zero
diff --git a/src/game/game_0abe70.c b/src/game/game_0abe70.c
index de257d1a7..a7d20e4a9 100644
--- a/src/game/game_0abe70.c
+++ b/src/game/game_0abe70.c
@@ -3942,7 +3942,7 @@ glabel var7f1acd6c
 /*  f0ae9d8:	8d210000 */ 	lw	$at,0x0($t1)
 /*  f0ae9dc:	24110001 */ 	addiu	$s1,$zero,0x1
 /*  f0ae9e0:	af210000 */ 	sw	$at,0x0($t9)
-/*  f0ae9e4:	0c008b49 */ 	jal	func00022d24
+/*  f0ae9e4:	0c008b49 */ 	jal	modelCalculateRwDataLen
 /*  f0ae9e8:	8fa400f0 */ 	lw	$a0,0xf0($sp)
 /*  f0ae9ec:	27a400c8 */ 	addiu	$a0,$sp,0xc8
 /*  f0ae9f0:	8fa500f0 */ 	lw	$a1,0xf0($sp)
diff --git a/src/game/game_0b69d0.c b/src/game/game_0b69d0.c
index fcd009e46..301be0e88 100644
--- a/src/game/game_0b69d0.c
+++ b/src/game/game_0b69d0.c
@@ -1995,12 +1995,12 @@ glabel var7f1ad5b4
 /*  f0b8fd4:	39ab003f */ 	xori	$t3,$t5,0x3f
 /*  f0b8fd8:	afab00f0 */ 	sw	$t3,0xf0($sp)
 .L0f0b8fdc:
-/*  f0b8fdc:	0c008b49 */ 	jal	func00022d24
+/*  f0b8fdc:	0c008b49 */ 	jal	modelCalculateRwDataLen
 /*  f0b8fe0:	8fa400fc */ 	lw	$a0,0xfc($sp)
 /*  f0b8fe4:	8fae00f8 */ 	lw	$t6,0xf8($sp)
 /*  f0b8fe8:	51c00004 */ 	beqzl	$t6,.L0f0b8ffc
 /*  f0b8fec:	8fa4005c */ 	lw	$a0,0x5c($sp)
-/*  f0b8ff0:	0c008b49 */ 	jal	func00022d24
+/*  f0b8ff0:	0c008b49 */ 	jal	modelCalculateRwDataLen
 /*  f0b8ff4:	01c02025 */ 	or	$a0,$t6,$zero
 /*  f0b8ff8:	8fa4005c */ 	lw	$a0,0x5c($sp)
 .L0f0b8ffc:
@@ -2300,7 +2300,7 @@ glabel var7f1ad5b4
 /*  f0b9458:	afa200f4 */ 	sw	$v0,0xf4($sp)
 /*  f0b945c:	0fc59ca0 */ 	jal	fileGetSize
 /*  f0b9460:	94640004 */ 	lhu	$a0,0x4($v1)
-/*  f0b9464:	0c008b49 */ 	jal	func00022d24
+/*  f0b9464:	0c008b49 */ 	jal	modelCalculateRwDataLen
 /*  f0b9468:	8fa400f4 */ 	lw	$a0,0xf4($sp)
 /*  f0b946c:	10000004 */ 	b	.L0f0b9480
 /*  f0b9470:	8faf00dc */ 	lw	$t7,0xdc($sp)
@@ -2653,12 +2653,12 @@ glabel var7f1ad5b4
 /*  f0b6cec:	39ab003f */ 	xori	$t3,$t5,0x3f
 /*  f0b6cf0:	afab00f0 */ 	sw	$t3,0xf0($sp)
 .NB0f0b6cf4:
-/*  f0b6cf4:	0c008f6f */ 	jal	func00022d24
+/*  f0b6cf4:	0c008f6f */ 	jal	modelCalculateRwDataLen
 /*  f0b6cf8:	8fa400fc */ 	lw	$a0,0xfc($sp)
 /*  f0b6cfc:	8fae00f8 */ 	lw	$t6,0xf8($sp)
 /*  f0b6d00:	51c00004 */ 	beqzl	$t6,.NB0f0b6d14
 /*  f0b6d04:	8fa4005c */ 	lw	$a0,0x5c($sp)
-/*  f0b6d08:	0c008f6f */ 	jal	func00022d24
+/*  f0b6d08:	0c008f6f */ 	jal	modelCalculateRwDataLen
 /*  f0b6d0c:	01c02025 */ 	or	$a0,$t6,$zero
 /*  f0b6d10:	8fa4005c */ 	lw	$a0,0x5c($sp)
 .NB0f0b6d14:
@@ -2942,7 +2942,7 @@ glabel var7f1ad5b4
 /*  f0b7134:	afa200f4 */ 	sw	$v0,0xf4($sp)
 /*  f0b7138:	0fc586ed */ 	jal	fileGetSize
 /*  f0b713c:	94640004 */ 	lhu	$a0,0x4($v1)
-/*  f0b7140:	0c008f6f */ 	jal	func00022d24
+/*  f0b7140:	0c008f6f */ 	jal	modelCalculateRwDataLen
 /*  f0b7144:	8fa400f4 */ 	lw	$a0,0xf4($sp)
 /*  f0b7148:	10000004 */ 	beqz	$zero,.NB0f0b715c
 /*  f0b714c:	8fb900dc */ 	lw	$t9,0xdc($sp)
diff --git a/src/game/game_0f09f0.c b/src/game/game_0f09f0.c
index a22f39472..196a714e0 100644
--- a/src/game/game_0f09f0.c
+++ b/src/game/game_0f09f0.c
@@ -5385,7 +5385,7 @@ glabel var7f1b3c40pf
 /*  f0f42a8:	3479003f */ 	ori	$t9,$v1,0x3f
 /*  f0f42ac:	3b29003f */ 	xori	$t1,$t9,0x3f
 /*  f0f42b0:	8e040054 */ 	lw	$a0,0x54($s0)
-/*  f0f42b4:	0c00898a */ 	jal	func00022d24
+/*  f0f42b4:	0c00898a */ 	jal	modelCalculateRwDataLen
 /*  f0f42b8:	afa9040c */ 	sw	$t1,0x40c($sp)
 /*  f0f42bc:	8fb80400 */ 	lw	$t8,0x400($sp)
 /*  f0f42c0:	8fa3040c */ 	lw	$v1,0x40c($sp)
@@ -5408,7 +5408,7 @@ glabel var7f1b3c40pf
 /*  f0f4300:	8fa50400 */ 	lw	$a1,0x400($sp)
 /*  f0f4304:	0fc0b7b7 */ 	jal	func0f02ddbc
 /*  f0f4308:	8fa60404 */ 	lw	$a2,0x404($sp)
-/*  f0f430c:	0c00898a */ 	jal	func00022d24
+/*  f0f430c:	0c00898a */ 	jal	modelCalculateRwDataLen
 /*  f0f4310:	8e040058 */ 	lw	$a0,0x58($s0)
 .PF0f0f4314:
 /*  f0f4314:	26040060 */ 	addiu	$a0,$s0,0x60
@@ -5461,7 +5461,7 @@ glabel var7f1b3c40pf
 /*  f0f43cc:	ae020054 */ 	sw	$v0,0x54($s0)
 /*  f0f43d0:	0fc5a080 */ 	jal	fileGetSize
 /*  f0f43d4:	8e04000c */ 	lw	$a0,0xc($s0)
-/*  f0f43d8:	0c00898a */ 	jal	func00022d24
+/*  f0f43d8:	0c00898a */ 	jal	modelCalculateRwDataLen
 /*  f0f43dc:	8e040054 */ 	lw	$a0,0x54($s0)
 /*  f0f43e0:	26040060 */ 	addiu	$a0,$s0,0x60
 /*  f0f43e4:	8e050054 */ 	lw	$a1,0x54($s0)
@@ -6987,7 +6987,7 @@ glabel var7f1b2948
 /*  f0f3b54:	346d003f */ 	ori	$t5,$v1,0x3f
 /*  f0f3b58:	39ab003f */ 	xori	$t3,$t5,0x3f
 /*  f0f3b5c:	8e040054 */ 	lw	$a0,0x54($s0)
-/*  f0f3b60:	0c008b49 */ 	jal	func00022d24
+/*  f0f3b60:	0c008b49 */ 	jal	modelCalculateRwDataLen
 /*  f0f3b64:	afab040c */ 	sw	$t3,0x40c($sp)
 /*  f0f3b68:	8fae0400 */ 	lw	$t6,0x400($sp)
 /*  f0f3b6c:	8fa3040c */ 	lw	$v1,0x40c($sp)
@@ -7010,7 +7010,7 @@ glabel var7f1b2948
 /*  f0f3bac:	8fa50400 */ 	lw	$a1,0x400($sp)
 /*  f0f3bb0:	0fc0b76f */ 	jal	func0f02ddbc
 /*  f0f3bb4:	8fa60404 */ 	lw	$a2,0x404($sp)
-/*  f0f3bb8:	0c008b49 */ 	jal	func00022d24
+/*  f0f3bb8:	0c008b49 */ 	jal	modelCalculateRwDataLen
 /*  f0f3bbc:	8e040058 */ 	lw	$a0,0x58($s0)
 .L0f0f3bc0:
 /*  f0f3bc0:	26040060 */ 	addiu	$a0,$s0,0x60
@@ -7063,7 +7063,7 @@ glabel var7f1b2948
 /*  f0f3c78:	ae020054 */ 	sw	$v0,0x54($s0)
 /*  f0f3c7c:	0fc59ca0 */ 	jal	fileGetSize
 /*  f0f3c80:	8e04000c */ 	lw	$a0,0xc($s0)
-/*  f0f3c84:	0c008b49 */ 	jal	func00022d24
+/*  f0f3c84:	0c008b49 */ 	jal	modelCalculateRwDataLen
 /*  f0f3c88:	8e040054 */ 	lw	$a0,0x54($s0)
 /*  f0f3c8c:	26040060 */ 	addiu	$a0,$s0,0x60
 /*  f0f3c90:	8e050054 */ 	lw	$a1,0x54($s0)
@@ -8596,7 +8596,7 @@ glabel var7f1b2948
 /*  f0f0698:	346d003f */ 	ori	$t5,$v1,0x3f
 /*  f0f069c:	39ab003f */ 	xori	$t3,$t5,0x3f
 /*  f0f06a0:	8e240054 */ 	lw	$a0,0x54($s1)
-/*  f0f06a4:	0c008f6f */ 	jal	func00022d24
+/*  f0f06a4:	0c008f6f */ 	jal	modelCalculateRwDataLen
 /*  f0f06a8:	afab0434 */ 	sw	$t3,0x434($sp)
 /*  f0f06ac:	8fae0428 */ 	lw	$t6,0x428($sp)
 /*  f0f06b0:	8fa30434 */ 	lw	$v1,0x434($sp)
@@ -8619,7 +8619,7 @@ glabel var7f1b2948
 /*  f0f06f0:	8fa50428 */ 	lw	$a1,0x428($sp)
 /*  f0f06f4:	0fc0b5be */ 	jal	func0f02ddbc
 /*  f0f06f8:	8fa6042c */ 	lw	$a2,0x42c($sp)
-/*  f0f06fc:	0c008f6f */ 	jal	func00022d24
+/*  f0f06fc:	0c008f6f */ 	jal	modelCalculateRwDataLen
 /*  f0f0700:	8e240058 */ 	lw	$a0,0x58($s1)
 .NB0f0f0704:
 /*  f0f0704:	26240060 */ 	addiu	$a0,$s1,0x60
@@ -8672,7 +8672,7 @@ glabel var7f1b2948
 /*  f0f07bc:	ae220054 */ 	sw	$v0,0x54($s1)
 /*  f0f07c0:	0fc586ed */ 	jal	fileGetSize
 /*  f0f07c4:	8e24000c */ 	lw	$a0,0xc($s1)
-/*  f0f07c8:	0c008f6f */ 	jal	func00022d24
+/*  f0f07c8:	0c008f6f */ 	jal	modelCalculateRwDataLen
 /*  f0f07cc:	8e240054 */ 	lw	$a0,0x54($s1)
 /*  f0f07d0:	26240060 */ 	addiu	$a0,$s1,0x60
 /*  f0f07d4:	8e250054 */ 	lw	$a1,0x54($s1)
diff --git a/src/game/title.c b/src/game/title.c
index 1a0ec73f7..2273759b1 100644
--- a/src/game/title.c
+++ b/src/game/title.c
@@ -1519,7 +1519,7 @@ glabel titleInitPdLogo
 /*  f016db8:	356b7800 */ 	ori	$t3,$t3,0x7800
 /*  f016dbc:	020a8021 */ 	addu	$s0,$s0,$t2
 /*  f016dc0:	016a9023 */ 	subu	$s2,$t3,$t2
-/*  f016dc4:	0c008b49 */ 	jal	func00022d24
+/*  f016dc4:	0c008b49 */ 	jal	modelCalculateRwDataLen
 /*  f016dc8:	8e240240 */ 	lw	$a0,0x240($s1)
 /*  f016dcc:	0fc2cca0 */ 	jal	func0f0b3280
 /*  f016dd0:	8e240240 */ 	lw	$a0,0x240($s1)
@@ -1555,7 +1555,7 @@ glabel titleInitPdLogo
 /*  f016e48:	39cf003f */ 	xori	$t7,$t6,0x3f
 /*  f016e4c:	020f8021 */ 	addu	$s0,$s0,$t7
 /*  f016e50:	024f9023 */ 	subu	$s2,$s2,$t7
-/*  f016e54:	0c008b49 */ 	jal	func00022d24
+/*  f016e54:	0c008b49 */ 	jal	modelCalculateRwDataLen
 /*  f016e58:	8e240248 */ 	lw	$a0,0x248($s1)
 /*  f016e5c:	0fc2cca0 */ 	jal	func0f0b3280
 /*  f016e60:	8e240248 */ 	lw	$a0,0x248($s1)
@@ -1591,7 +1591,7 @@ glabel titleInitPdLogo
 /*  f016ed8:	3b2c003f */ 	xori	$t4,$t9,0x3f
 /*  f016edc:	020c8021 */ 	addu	$s0,$s0,$t4
 /*  f016ee0:	024c9023 */ 	subu	$s2,$s2,$t4
-/*  f016ee4:	0c008b49 */ 	jal	func00022d24
+/*  f016ee4:	0c008b49 */ 	jal	modelCalculateRwDataLen
 /*  f016ee8:	8e240268 */ 	lw	$a0,0x268($s1)
 /*  f016eec:	0fc2cc2b */ 	jal	func0f0b30ac
 /*  f016ef0:	8e240268 */ 	lw	$a0,0x268($s1)
@@ -1627,7 +1627,7 @@ glabel titleInitPdLogo
 /*  f016f68:	3948003f */ 	xori	$t0,$t2,0x3f
 /*  f016f6c:	02088021 */ 	addu	$s0,$s0,$t0
 /*  f016f70:	02489023 */ 	subu	$s2,$s2,$t0
-/*  f016f74:	0c008b49 */ 	jal	func00022d24
+/*  f016f74:	0c008b49 */ 	jal	modelCalculateRwDataLen
 /*  f016f78:	8e240270 */ 	lw	$a0,0x270($s1)
 /*  f016f7c:	0fc2cc2b */ 	jal	func0f0b30ac
 /*  f016f80:	8e240270 */ 	lw	$a0,0x270($s1)
@@ -1707,7 +1707,7 @@ glabel titleInitPdLogo
 //		size = ALIGN64(fileGetSize(g_ModelStates[MODEL_NLOGO].fileid));
 //		nextaddr += size;
 //		remaining = 0x47800 - size;
-//		func00022d24(g_ModelStates[MODEL_NLOGO].filedata);
+//		modelCalculateRwDataLen(g_ModelStates[MODEL_NLOGO].filedata);
 //
 //		g_TitleModel = func0f0b3280(g_ModelStates[MODEL_NLOGO].filedata);
 //		modelSetScale(g_TitleModel, 1);
@@ -1720,7 +1720,7 @@ glabel titleInitPdLogo
 //		size = ALIGN64(fileGetSize(g_ModelStates[MODEL_NLOGO2].fileid));
 //		nextaddr += size;
 //		remaining -= size;
-//		func00022d24(g_ModelStates[MODEL_NLOGO2].filedata);
+//		modelCalculateRwDataLen(g_ModelStates[MODEL_NLOGO2].filedata);
 //
 //		g_TitleModel2 = func0f0b3280(g_ModelStates[MODEL_NLOGO2].filedata);
 //		modelSetScale(g_TitleModel2, 1);
@@ -1733,7 +1733,7 @@ glabel titleInitPdLogo
 //		size = ALIGN64(fileGetSize(g_ModelStates[MODEL_PDTWO].fileid));
 //		nextaddr += size;
 //		remaining -= size;
-//		func00022d24(g_ModelStates[MODEL_PDTWO].filedata);
+//		modelCalculateRwDataLen(g_ModelStates[MODEL_PDTWO].filedata);
 //
 //		var80062508 = func0f0b30ac(g_ModelStates[MODEL_PDTWO].filedata);
 //		modelSetScale(var80062508, 1);
@@ -1746,7 +1746,7 @@ glabel titleInitPdLogo
 //		size = ALIGN64(fileGetSize(g_ModelStates[MODEL_PDTHREE].fileid));
 //		nextaddr += size;
 //		remaining -= size;
-//		func00022d24(g_ModelStates[MODEL_PDTHREE].filedata);
+//		modelCalculateRwDataLen(g_ModelStates[MODEL_PDTHREE].filedata);
 //
 //		var8006250c = func0f0b30ac(g_ModelStates[MODEL_PDTHREE].filedata);
 //		modelSetScale(var8006250c, 1);
@@ -5348,7 +5348,7 @@ void titleInitNintendoLogo(void)
 
 		g_ModelStates[MODEL_NINTENDOLOGO].filedata = func0f1a7794(g_ModelStates[MODEL_NINTENDOLOGO].fileid, nextaddr, 0x47800, 0);
 
-		func00022d24(g_ModelStates[MODEL_NINTENDOLOGO].filedata);
+		modelCalculateRwDataLen(g_ModelStates[MODEL_NINTENDOLOGO].filedata);
 		g_TitleModel = func0f0b30ac(g_ModelStates[MODEL_NINTENDOLOGO].filedata);
 		modelSetScale(g_TitleModel, 1);
 		modelSetRootPosition(g_TitleModel, &coord);
@@ -6029,7 +6029,7 @@ void titleInitRareLogo(void)
 
 		g_ModelStates[MODEL_RARELOGO].filedata = func0f1a7794(g_ModelStates[MODEL_RARELOGO].fileid, nextaddr, 0x47800, 0);
 
-		func00022d24(g_ModelStates[MODEL_RARELOGO].filedata);
+		modelCalculateRwDataLen(g_ModelStates[MODEL_RARELOGO].filedata);
 		g_TitleModel = func0f0b30ac(g_ModelStates[MODEL_RARELOGO].filedata);
 		modelSetScale(g_TitleModel, 1);
 		modelSetRootPosition(g_TitleModel, &coord);
diff --git a/src/include/lib/model.h b/src/include/lib/model.h
index 9795f9014..13eba54e1 100644
--- a/src/include/lib/model.h
+++ b/src/include/lib/model.h
@@ -94,8 +94,8 @@ u32 func000220fc(void);
 s32 func000225d4(struct model *model, struct coord *arg1, struct coord *arg2, u32 *arg3);
 void modelPromoteNodeOffsetsToPointers(struct modelnode *node, u32 arg1, u32 arg2);
 void modelPromoteOffsetsToPointers(struct modelfiledata *filedata, u32 arg1, u32 arg2);
-s32 func00022b68(struct modelnode *node);
-void func00022d24(struct modelfiledata *filedata);
+s32 modelCalculateRwDataIndexes(struct modelnode *node);
+void modelCalculateRwDataLen(struct modelfiledata *filedata);
 void func00022d50(struct model *model, struct modelnode *node);
 void modelInit(struct model *model, struct modelfiledata *filedata, union modelrwdata **rwdatas, bool resetanim);
 void animInit(struct anim *anim);
diff --git a/src/include/types.h b/src/include/types.h
index 7d3898329..40e198b8e 100644
--- a/src/include/types.h
+++ b/src/include/types.h
@@ -648,7 +648,7 @@ struct modelfiledata {
 	s16 numparts;
 	s16 nummatrices;
 	f32 unk10;
-	u16 unk14;
+	u16 rwdatalen; // in words
 	void *unk18;
 };
 
@@ -684,10 +684,26 @@ struct modelrwdata_root { // type 0x01
 	u32 unk5c;
 };
 
+struct modelrwdata_05 { // type 0x05
+	bool unk00;
+};
+
 struct modelrwdata_nearfar { // type 0x08
 	bool visible;
 };
 
+struct modelrwdata_hat { // type 0x09
+	bool visible;
+};
+
+struct modelrwdata_0b { // type 0x0b
+	u32 unk00;
+};
+
+struct modelrwdata_gunfire { // type 0x0c
+	u32 unk00;
+};
+
 struct modelrwdata_partid { // type 0x12
 	union {
 		u16 u16;
@@ -695,26 +711,27 @@ struct modelrwdata_partid { // type 0x12
 	} visible;
 };
 
-struct modelrwdata_05 {
-	bool unk00;
-};
-
-struct modelrwdata_hat {
-	bool visible;
-};
-
 struct modelrwdata_headspot { // type 0x17
 	struct modelfiledata *modelfiledata;
 	void *rwdatas;
 };
 
+struct modelrwdata_displaylist { // type 0x18
+	u32 unk00;
+	u32 unk04;
+	u32 unk08;
+};
+
 union modelrwdata {
 	struct modelrwdata_root root;
+	struct modelrwdata_05 type05;
 	struct modelrwdata_nearfar nearfar;
 	struct modelrwdata_hat hat;
+	struct modelrwdata_0b type0b;
+	struct modelrwdata_gunfire gunfire;
 	struct modelrwdata_partid partid;
-	struct modelrwdata_05 type05;
 	struct modelrwdata_headspot headspot;
+	struct modelrwdata_displaylist displaylist;
 };
 
 struct waygroup {
diff --git a/src/lib/model.c b/src/lib/model.c
index 4221726d6..6a7387627 100644
--- a/src/lib/model.c
+++ b/src/lib/model.c
@@ -9994,183 +9994,89 @@ void modelPromoteOffsetsToPointers(struct modelfiledata *filedata, u32 vma, u32
 	}
 }
 
-GLOBAL_ASM(
-glabel func00022b68
-.late_rodata
-glabel var70054578
-.word func00022b68+0x050
-glabel var7005457c
-.word func00022b68+0x148
-glabel var70054580
-.word func00022b68+0x148
-glabel var70054584
-.word func00022b68+0x148
-glabel var70054588
-.word func00022b68+0x148
-glabel var7005458c
-.word func00022b68+0x148
-glabel var70054590
-.word func00022b68+0x148
-glabel var70054594
-.word func00022b68+0x06c
-glabel var70054598
-.word func00022b68+0x0cc
-glabel var7005459c
-.word func00022b68+0x148
-glabel var700545a0
-.word func00022b68+0x0f4
-glabel var700545a4
-.word func00022b68+0x110
-glabel var700545a8
-.word func00022b68+0x148
-glabel var700545ac
-.word func00022b68+0x148
-glabel var700545b0
-.word func00022b68+0x148
-glabel var700545b4
-.word func00022b68+0x148
-glabel var700545b8
-.word func00022b68+0x148
-glabel var700545bc
-.word func00022b68+0x08c
-glabel var700545c0
-.word func00022b68+0x148
-glabel var700545c4
-.word func00022b68+0x148
-glabel var700545c8
-.word func00022b68+0x148
-glabel var700545cc
-.word func00022b68+0x148
-glabel var700545d0
-.word func00022b68+0x0ac
-glabel var700545d4
-.word func00022b68+0x12c
-.text
-/*    22b68:	27bdffd8 */ 	addiu	$sp,$sp,-40
-/*    22b6c:	afb20020 */ 	sw	$s2,0x20($sp)
-/*    22b70:	afb1001c */ 	sw	$s1,0x1c($sp)
-/*    22b74:	afb00018 */ 	sw	$s0,0x18($sp)
-/*    22b78:	00809025 */ 	or	$s2,$a0,$zero
-/*    22b7c:	afbf0024 */ 	sw	$ra,0x24($sp)
-/*    22b80:	00008825 */ 	or	$s1,$zero,$zero
-/*    22b84:	10800060 */ 	beqz	$a0,.L00022d08
-/*    22b88:	00808025 */ 	or	$s0,$a0,$zero
-/*    22b8c:	96020000 */ 	lhu	$v0,0x0($s0)
-.L00022b90:
-/*    22b90:	304e00ff */ 	andi	$t6,$v0,0xff
-/*    22b94:	25cfffff */ 	addiu	$t7,$t6,-1
-/*    22b98:	2de10018 */ 	sltiu	$at,$t7,0x18
-/*    22b9c:	10200044 */ 	beqz	$at,.L00022cb0
-/*    22ba0:	000f7880 */ 	sll	$t7,$t7,0x2
-/*    22ba4:	3c017005 */ 	lui	$at,%hi(var70054578)
-/*    22ba8:	002f0821 */ 	addu	$at,$at,$t7
-/*    22bac:	8c2f4578 */ 	lw	$t7,%lo(var70054578)($at)
-/*    22bb0:	01e00008 */ 	jr	$t7
-/*    22bb4:	00000000 */ 	nop
-/*    22bb8:	8e020004 */ 	lw	$v0,0x4($s0)
-/*    22bbc:	a4510008 */ 	sh	$s1,0x8($v0)
-/*    22bc0:	26310018 */ 	addiu	$s1,$s1,0x18
-/*    22bc4:	3238ffff */ 	andi	$t8,$s1,0xffff
-/*    22bc8:	03008825 */ 	or	$s1,$t8,$zero
-/*    22bcc:	10000039 */ 	b	.L00022cb4
-/*    22bd0:	8e030014 */ 	lw	$v1,0x14($s0)
-/*    22bd4:	8e020004 */ 	lw	$v0,0x4($s0)
-/*    22bd8:	a451000c */ 	sh	$s1,0xc($v0)
-/*    22bdc:	8c430008 */ 	lw	$v1,0x8($v0)
-/*    22be0:	26310001 */ 	addiu	$s1,$s1,0x1
-/*    22be4:	3239ffff */ 	andi	$t9,$s1,0xffff
-/*    22be8:	03208825 */ 	or	$s1,$t9,$zero
-/*    22bec:	10000031 */ 	b	.L00022cb4
-/*    22bf0:	ae030014 */ 	sw	$v1,0x14($s0)
-/*    22bf4:	8e020004 */ 	lw	$v0,0x4($s0)
-/*    22bf8:	a4510004 */ 	sh	$s1,0x4($v0)
-/*    22bfc:	8c430000 */ 	lw	$v1,0x0($v0)
-/*    22c00:	26310001 */ 	addiu	$s1,$s1,0x1
-/*    22c04:	3229ffff */ 	andi	$t1,$s1,0xffff
-/*    22c08:	01208825 */ 	or	$s1,$t1,$zero
-/*    22c0c:	10000029 */ 	b	.L00022cb4
-/*    22c10:	ae030014 */ 	sw	$v1,0x14($s0)
-/*    22c14:	8e020004 */ 	lw	$v0,0x4($s0)
-/*    22c18:	00001825 */ 	or	$v1,$zero,$zero
-/*    22c1c:	a4510000 */ 	sh	$s1,0x0($v0)
-/*    22c20:	26310002 */ 	addiu	$s1,$s1,0x2
-/*    22c24:	322bffff */ 	andi	$t3,$s1,0xffff
-/*    22c28:	01608825 */ 	or	$s1,$t3,$zero
-/*    22c2c:	10000021 */ 	b	.L00022cb4
-/*    22c30:	ae000014 */ 	sw	$zero,0x14($s0)
-/*    22c34:	8e020004 */ 	lw	$v0,0x4($s0)
-/*    22c38:	02002025 */ 	or	$a0,$s0,$zero
-/*    22c3c:	00002825 */ 	or	$a1,$zero,$zero
-/*    22c40:	a4510022 */ 	sh	$s1,0x22($v0)
-/*    22c44:	26310001 */ 	addiu	$s1,$s1,0x1
-/*    22c48:	322cffff */ 	andi	$t4,$s1,0xffff
-/*    22c4c:	0c00721a */ 	jal	func0001c868
-/*    22c50:	01808825 */ 	or	$s1,$t4,$zero
-/*    22c54:	10000017 */ 	b	.L00022cb4
-/*    22c58:	8e030014 */ 	lw	$v1,0x14($s0)
-/*    22c5c:	8e020004 */ 	lw	$v0,0x4($s0)
-/*    22c60:	a4510044 */ 	sh	$s1,0x44($v0)
-/*    22c64:	26310001 */ 	addiu	$s1,$s1,0x1
-/*    22c68:	322dffff */ 	andi	$t5,$s1,0xffff
-/*    22c6c:	01a08825 */ 	or	$s1,$t5,$zero
-/*    22c70:	10000010 */ 	b	.L00022cb4
-/*    22c74:	8e030014 */ 	lw	$v1,0x14($s0)
-/*    22c78:	8e020004 */ 	lw	$v0,0x4($s0)
-/*    22c7c:	a4510020 */ 	sh	$s1,0x20($v0)
-/*    22c80:	26310001 */ 	addiu	$s1,$s1,0x1
-/*    22c84:	322effff */ 	andi	$t6,$s1,0xffff
-/*    22c88:	01c08825 */ 	or	$s1,$t6,$zero
-/*    22c8c:	10000009 */ 	b	.L00022cb4
-/*    22c90:	8e030014 */ 	lw	$v1,0x14($s0)
-/*    22c94:	8e020004 */ 	lw	$v0,0x4($s0)
-/*    22c98:	a4510014 */ 	sh	$s1,0x14($v0)
-/*    22c9c:	26310003 */ 	addiu	$s1,$s1,0x3
-/*    22ca0:	322fffff */ 	andi	$t7,$s1,0xffff
-/*    22ca4:	01e08825 */ 	or	$s1,$t7,$zero
-/*    22ca8:	10000002 */ 	b	.L00022cb4
-/*    22cac:	8e030014 */ 	lw	$v1,0x14($s0)
-.L00022cb0:
-/*    22cb0:	8e030014 */ 	lw	$v1,0x14($s0)
-.L00022cb4:
-/*    22cb4:	10600003 */ 	beqz	$v1,.L00022cc4
-/*    22cb8:	00000000 */ 	nop
-/*    22cbc:	10000010 */ 	b	.L00022d00
-/*    22cc0:	00608025 */ 	or	$s0,$v1,$zero
-.L00022cc4:
-/*    22cc4:	1200000e */ 	beqz	$s0,.L00022d00
-/*    22cc8:	00000000 */ 	nop
-/*    22ccc:	8e430008 */ 	lw	$v1,0x8($s2)
-.L00022cd0:
-/*    22cd0:	56030004 */ 	bnel	$s0,$v1,.L00022ce4
-/*    22cd4:	8e02000c */ 	lw	$v0,0xc($s0)
-/*    22cd8:	10000009 */ 	b	.L00022d00
-/*    22cdc:	00008025 */ 	or	$s0,$zero,$zero
-/*    22ce0:	8e02000c */ 	lw	$v0,0xc($s0)
-.L00022ce4:
-/*    22ce4:	50400004 */ 	beqzl	$v0,.L00022cf8
-/*    22ce8:	8e100008 */ 	lw	$s0,0x8($s0)
-/*    22cec:	10000004 */ 	b	.L00022d00
-/*    22cf0:	00408025 */ 	or	$s0,$v0,$zero
-/*    22cf4:	8e100008 */ 	lw	$s0,0x8($s0)
-.L00022cf8:
-/*    22cf8:	1600fff5 */ 	bnez	$s0,.L00022cd0
-/*    22cfc:	00000000 */ 	nop
-.L00022d00:
-/*    22d00:	5600ffa3 */ 	bnezl	$s0,.L00022b90
-/*    22d04:	96020000 */ 	lhu	$v0,0x0($s0)
-.L00022d08:
-/*    22d08:	8fbf0024 */ 	lw	$ra,0x24($sp)
-/*    22d0c:	02201025 */ 	or	$v0,$s1,$zero
-/*    22d10:	8fb1001c */ 	lw	$s1,0x1c($sp)
-/*    22d14:	8fb00018 */ 	lw	$s0,0x18($sp)
-/*    22d18:	8fb20020 */ 	lw	$s2,0x20($sp)
-/*    22d1c:	03e00008 */ 	jr	$ra
-/*    22d20:	27bd0028 */ 	addiu	$sp,$sp,0x28
-);
-
-void func00022d24(struct modelfiledata *filedata)
+s32 modelCalculateRwDataIndexes(struct modelnode *basenode)
 {
-	filedata->unk14 = func00022b68(filedata->rootnode);
+	u16 len = 0;
+	struct modelnode *node = basenode;
+	union modelrodata *rodata;
+
+	while (node) {
+		u32 type = node->type & 0xff;
+
+		switch (type) {
+		case MODELNODETYPE_ROOT:
+			rodata = node->rodata;
+			rodata->root.rwdataindex = len;
+			len += sizeof(struct modelrwdata_root) / 4;
+			break;
+		case MODELNODETYPE_NEARFAR:
+			rodata = node->rodata;
+			rodata->nearfar.rwdataindex = len;
+			len += sizeof(struct modelrwdata_nearfar) / 4;
+			node->child = rodata->nearfar.target;
+			break;
+		case MODELNODETYPE_PARTID:
+			rodata = node->rodata;
+			rodata->partid.rwdataindex = len;
+			len += sizeof(struct modelrwdata_partid) / 4;
+			node->child = rodata->partid.target;
+			break;
+		case MODELNODETYPE_HEADSPOT:
+			rodata = node->rodata;
+			rodata->headspot.rwdataindex = len;
+			len += sizeof(struct modelrwdata_headspot) / 4;
+			node->child = NULL;
+			break;
+		case MODELNODETYPE_HAT:
+			rodata = node->rodata;
+			rodata->hat.rwdataindex = len;
+			len += sizeof(struct modelrwdata_hat) / 4;
+			func0001c868(node, false);
+			break;
+		case MODELNODETYPE_0B:
+			rodata = node->rodata;
+			rodata->type0b.rwdataindex = len;
+			len += sizeof(struct modelrwdata_0b) / 4;
+			break;
+		case MODELNODETYPE_GUNFIRE:
+			rodata = node->rodata;
+			rodata->gunfire.rwdataindex = len;
+			len += sizeof(struct modelrwdata_gunfire) / 4;
+			break;
+		case MODELNODETYPE_DISPLAYLIST:
+			rodata = node->rodata;
+			rodata->displaylist.rwdataindex = len;
+			len += sizeof(struct modelrwdata_displaylist) / 4;
+			break;
+		default:
+			break;
+		}
+
+		if (node->child) {
+			node = node->child;
+		} else {
+			while (node) {
+				if (node == basenode->parent) {
+					node = NULL;
+					break;
+				}
+
+				if (node->next) {
+					node = node->next;
+					break;
+				}
+
+				node = node->parent;
+			}
+		}
+	}
+
+	return len;
+}
+
+void modelCalculateRwDataLen(struct modelfiledata *filedata)
+{
+	filedata->rwdatalen = modelCalculateRwDataIndexes(filedata->rootnode);
 }
 
 GLOBAL_ASM(
@@ -10489,7 +10395,7 @@ glabel func00023108
 /*    2316c:	ac660008 */ 	sw	$a2,0x8($v1)
 /*    23170:	8cc40014 */ 	lw	$a0,0x14($a2)
 .L00023174:
-/*    23174:	0c008ada */ 	jal	func00022b68
+/*    23174:	0c008ada */ 	jal	modelCalculateRwDataIndexes
 /*    23178:	00000000 */ 	nop
 /*    2317c:	8fa7001c */ 	lw	$a3,0x1c($sp)
 /*    23180:	84ea0014 */ 	lh	$t2,0x14($a3)