diff --git a/CModCondData.bt b/CModCondData.bt
deleted file mode 100644
index 442da93..0000000
--- a/CModCondData.bt
+++ /dev/null
@@ -1,128 +0,0 @@
-#ifndef _CMODCONDDATA
-#define _CMODCONDDATA
-
-#include "CCollisionTree.bt"
-#include "CColor4f.bt"
-#include "CRenderOctree.bt"
-#include "SAtlasLookup.bt"
-
-typedef struct {
-  typedef struct {
-    ChunkDescriptor mchd;
-    uint unk;
-  } SModCondHeader;
-
-  SModCondHeader header;
-  ChunkDescriptor mcvd;
-  uint modelGuidCount;
-  if (modelGuidCount) {
-    struct {
-      GUID guid;
-    } modelGuids[modelGuidCount];
-  }
-  uint unkGuidCount;
-  if (unkGuidCount) {
-    struct {
-      GUID guid;
-    } unkGuids[unkGuidCount];
-  }
-  uint colorCount;
-  if (colorCount) {
-    CColor4f colors[colorCount];
-  }
-
-  uint transformCount;
-  if (transformCount) {
-    CTransform4f transforms[transformCount];
-  }
-
-  uint guidXfCount;
-  if (guidXfCount) {
-    struct {
-      GUID guid;
-      CTransform4f xf;
-    } guidXf[guidXfCount];
-  }
-
-  uint dataCount1;
-  if (dataCount1) {
-    char data1[dataCount1];
-  }
-  uint shortCount1;
-  if (shortCount1) {
-    ushort shorts1[shortCount1];
-  }
-  uint shortCount2;
-  if (shortCount2) {
-    ushort shorts2[shortCount2];
-  }
-
-  uint dataCount2;
-  if (dataCount2) {
-    char data2[dataCount2];
-  }
-
-  uint dataCount3;
-  if (dataCount3) {
-    char data3[dataCount3];
-  }
-
-  uint atlasLookupCount1;
-  if (atlasLookupCount1) {
-    SAtlasLookup atlasLookups1[atlasLookupCount1];
-  }
-
-  uint atlasLookupCount2;
-  if (atlasLookupCount2) {
-    SAtlasLookup atlasLookups2[atlasLookupCount2];
-  }
-
-  uint hasRenderOctree;
-  if (hasRenderOctree) {
-    CRenderOctree renderOctree;
-  }
-
-  typedef struct SModelVertexBlendData {
-    uint unk1;
-    uint intCount;
-    if (intCount) {
-      uint ints[intCount];
-    }
-
-    uint shortCount;
-    if (shortCount) {
-      ushort shorts[shortCount];
-    }
-  } SModelVertexBlendData;
-  if (ReadInt(FTell()) == 0x4D435642) {
-    typedef struct SNodeVertexBlendData {
-      uint unkDataCount;
-      if (unkDataCount) {
-        char unkData[unkDataCount];
-      }
-      uint unkIntCount;
-      if (unkIntCount) {
-        uint unkInts[unkIntCount];
-      }
-
-      uint modelVertexBlendDataCount;
-      if (modelVertexBlendDataCount) {
-        SModelVertexBlendData
-            modelVertexBlendData[modelVertexBlendDataCount]<optimize = false>;
-      }
-    } SNodeVertexBlendData;
-    
-    uint vertexBlendDataCount;
-    if (vertexBlendDataCount) {
-      SNodeVertexBlendData vertexBlendData[vertexBlendData]<optimize = false>;
-    }
-  }
-
-  if (ReadInt(FTell()) == 0x4443434D) {
-    ChunkDescriptor mccd;
-    CCollisionTree aaboxCollision(mccd.size, kCOL_AABox);
-  }
-  FourCC PEEK;
-} CModCondData;
-
-#endif // _CMODCONDDATA
diff --git a/NModConFormat.bt b/NModConFormat.bt
index 4ae2802..66c04f1 100644
--- a/NModConFormat.bt
+++ b/NModConFormat.bt
@@ -1,6 +1,11 @@
 #ifndef _NMODCONFORMAT
 #define _NMODCONFORMAT
 
+#include "CCollisionTree.bt"
+#include "CColor4f.bt"
+#include "CRenderOctree.bt"
+#include "SAtlasLookup.bt"
+
 struct ModConHeader {
     uint32 unk;
 };
@@ -10,18 +15,22 @@ struct ModConVisualData {
     if (count > 0) {
         CGuid modelId[count];
     }
+
     uint32 count2;
     if (count2 > 0) {
         CGuid ids2[count2];
     }
+
     uint32 colorCount;
     if (colorCount > 0) {
         CColor4f color[colorCount];
     }
+
     uint32 transformCount;
     if (transformCount > 0) {
         CTransform4f xf[transformCount];
     }
+
     uint32 objectTransformCount;
     if (objectTransformCount > 0) {
         struct {
@@ -29,42 +38,82 @@ struct ModConVisualData {
             CTransform4f xf;
         } objectXf[objectTransformCount];
     }
+
     uint32 byteCount;
     if (byteCount > 0) {
         byte bytes[byteCount];
     }
+
     uint32 shortCount;
     if (shortCount > 0) {
         uint16 shorts[shortCount];
     }
+
     uint32 shortCount2;
     if (shortCount2 > 0) {
         uint16 shorts2[shortCount2];
     }
+
     uint32 byteCount2;
     if (byteCount2 > 0) {
         byte bytes2[byteCount2];
     }
+
     uint32 byteCount3;
     if (byteCount3 > 0) {
         byte bytes3[byteCount3];
     }
-    uint32 atlasLookupCount;
-    if (atlasLookupCount > 0) {
-        SAtlasLookup atlasLookup[atlasLookupCount];
+
+    uint32 atlasLookupCount1;
+    if (atlasLookupCount1 > 0) {
+        SAtlasLookup atlasLookup1[atlasLookupCount1];
     }
+
     uint32 atlasLookupCount2;
     if (atlasLookupCount2 > 0) {
         SAtlasLookup atlasLookup2[atlasLookupCount2];
     }
+
     uint32 renderOctreeFlags;
     if (renderOctreeFlags != 0) {
         CRenderOctree renderOctree;
     }
 };
 
-struct ModConCollisionData {
-    ChunkDescriptor chunk;
+typedef struct {
+    uint32 unk1;
+    uint32 intCount;
+    if (intCount) {
+        uint32 ints[intCount];
+    }
+
+    uint32 shortCount;
+    if (shortCount) {
+        uint16 shorts[shortCount];
+    }
+} SModelVertexBlendData <optimize = false>;
+
+typedef struct {
+    uint32 unkDataCount;
+    if (unkDataCount) {
+        byte unkData[unkDataCount];
+    }
+    uint32 unkIntCount;
+    if (unkIntCount) {
+        uint32 unkInts[unkIntCount];
+    }
+
+    uint32 modelVertexBlendDataCount;
+    if (modelVertexBlendDataCount) {
+        SModelVertexBlendData modelVertexBlendData[modelVertexBlendDataCount];
+    }
+} SNodeVertexBlendData <optimize = false>;
+
+struct ModConVertexBlendData {
+    uint32 vertexBlendDataCount;
+    if (vertexBlendDataCount) {
+        SNodeVertexBlendData vertexBlendData[vertexBlendData];
+    }
 };
 
 struct ModConChunk;
@@ -86,10 +135,10 @@ typedef struct {
             ModConVisualData data;
             break;
         case "MCCD":
-            // ModConCollisionData
-            while (FTell() < start + desc.size) {
-                ModConChunk chunk;
-            }
+            CCollisionTree data(desc.size, kCOL_AABox);
+            break;
+        case "MCVB":
+            ModConVertexBlendData data;
             break;
         default:
             if (desc.size > 0) {
diff --git a/Run.bt b/Run.bt
index b1f8bf8..a6e2605 100644
--- a/Run.bt
+++ b/Run.bt
@@ -95,9 +95,6 @@ typedef struct {
   case "CLSN":
     CCollisionTree aaboxCollisionTree(form.size, kCOL_AABox);
     break;
-  case "MCON":
-    CModCondData modCond;
-    break;
   case "CHPR":
     FCharInf charInfo;
     break;