HaloMods "Classic" Read-only Archive

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    struct BLFHeader
    {
        string Word_blf;        // Len4
        int HeaderSize;
        short Unk8;
        short Unk10;
        short Unk12;
        string FileDescription; // Len34, Not present in all files.
        int Filesize;
        byte[] Unk52;           // Len8
        int FileContentsSize;
    }

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    struct EOFFooter
    {
        string Word_eof; // Len4
        int FooterSize;
        byte[] Unk8;     // Len(FooterSize - 8)
    }

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    struct BLFImageFile
    {
        BLFHeader blfHeader;
        byte[] ImgBuffer;  // Either PNG or JFIF
        EOFFooter eofFooter;
    }

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    struct MapInfoFile
    {
        BLFHeader blfHeader;
        byte Zero1;
        string EnglishName;    // All strings are unicode. All are Len64
        string JapaneseName;
        string GermanName;
        string FrenchName;
        string SpanishName;
        string LatinAmericaSpanishName;
        string ItalianName;
        string KoreanName;
        string ChineseName;
        byte[] Zero2;
        string PortugueseName;
        byte[] Zero3;
        string EnglishDesc;    // All strings are unicode. All are Len256
        string JapaneseDesc;
        string GermanDesc;
        string FrenchDesc;
        string SpanishDesc;
        string LatinAmericaSpanishDesc;
        string ItalianDesc;
        string KoreanDesc;
        string ChineseDesc;
        byte[] Zero4;
        string PortugueseDesc;
        byte[] Zero5;          // Len255
        string InternalName1;  // Len256
        string InternalName2;  // Len256
        byte[] Zero6;          // Varying length
        EOFFooter eofFooter;
    }

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.map FileName | Corresponding Map
====================================
005_intro ----- Arrival
010_jungle ==== Sierra 117
020_base ------ Crow's Nest
030_outskirts = Tsavo Highway
040_voi ------- The Storm
050_floodvoi == Floodgate
070_waste ----- The Ark
100_citadel === The Covenant
110_hc -------- Cortana
120_halo ====== Halo
130_epilogue -- Epilogue
chill ========= Narrows
construct ----- Construct
cyberdyne ===== The Pit
deadlock ------ High Ground
guardian ====== Guardian
isolation ----- Isolation
mainmenu ====== Main Menu
riverworld ---- Valhalla
salvation ===== Epitaph
shrine -------- Sandtrap
snowbound ===== Snowbound
zanzibar ------ Last Resort
campaign ====== [Unplayable, Used for SinglePlayer resources]
shared -------- [Unplayable, Used for MultiPlayer resources]

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    struct Header
    {
        string WordHead;            // Len4
        int Version;                // 11 For H3 Maps
        int Filesize;
        byte[] Zero1;               // Len4
        int IndexOffset;            // Address
        int VirtSegmentStart;       // Guess
        int VirtSegmentSize;        // Guess
        byte[] Zero2;               // Len256
        string BuildInfo;           // Len32
        short MapTypeIndex;         // 0=SP 1=MP 2=MM 3=Shared
        byte[] Unk318;              // Len26
        int StringTableCount;
        int StringTableSize;
        int StringTableIndexOffset; // Address
        int StringTableOffset;      // Address
        byte[] Zero3;               // Len4
        int Unk364;
        int Unk368;
        byte[] Zero4;               // Len24
        string InternalName;        // Len32
        byte[] Zero5;               // Len4
        string ScenarioName;        // Len256
        int Unk688;
        int FileTableCount;
        int FileTableOffset;        // Address
        int FileTableSize;
        int FileTableIndexOffset;   // Address
        int Checksum;               // Every 4 bytes xor'ed together after the header
        byte[] Unk712;              // Len32 - Constant
        int MapMagicBaseAddr;
        byte[] Unk748;              // Len128
        byte[] Hash;                // Len256
        int Unk1132;
        int MapMagicAddrMod1;
        int Unk1140;
        int LocaleTableAddrMod;
        byte[] Unk1148;             // Len12
        int MapMagicAddrMod2;
        byte[] Unk1164;             // Len11120
        string WordFoot;            // Len4
    }

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    struct Index
    {
        int TagClassCount;
        int TagClassIndexOffset;  // Address
        int TagCount;
        int TagInfoOffset;        // Address
        int TagInfoHeaderCount;
        int TagInfoHeaderOffset;  // Address
        int TagInfoHeaderCount2;
        int TagInfoHeaderOffset2; // Address
        byte[] Unk32;             // Len4
        string WordTags;          // Len4
    }

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    struct TagClass
    {
        string Class;            // Len4
        string ParentClass;      // Len4
        string GrandParentClass; // Len4
        int Identifier;
    }

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    struct Tag
    {
        short ClassIndex;
        int Identifier;   // Read as 16bit (short)
        int MetaOffset;   // Address
    }

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Identifer <<= 16;
Identifier |= TagIndex; // Index in TagInfo list

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    struct TagInfoHeaderItem
    {
        string Class; // Len4
        int Unk4;     // Len4
    }

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    struct TagRef
    {
        string Class;   // Len4
        byte[] Zero1;   // Len8
        int Identifier; 
    }

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    struct LoneID
    {
        int Identifier;
    }

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    struct Reflexive
    {
        int ChunkCount;
        int Pointer;    // Address    
        byte[] Zero1;   // Len4
    }

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    struct Locale
    {
        int Count;
        int Size;
        int TableIndexOffset; // Address
        int TableOffset;      // Address
        byte[] Unk16;         // Len52
    }

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    struct LocaleTableIndex
    {
        int Unk0;
        int StringIndex;
    }

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   Start: EE848C20
A Button: EE848020
B Button: 20EE8481
X Button: EE848220
Y Button: 20EE8483

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0x3E0 Int Table Size
0x3E8 Int Table Offset
0x3F4     Scripts Reflexive
0x4A4     ScriptSyntaxes Reflexive

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    struct ScriptChunk
    {
        string Name;
        short ScriptType;
        short ReturnType;
        short ExpressionIndex;
        short ChunkIndex;
        byte[] Unused; // Len12
    }

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enum ScriptType : short
    {
        Startup,
        Dormant,
        Continuous,
        Static,
        Stub,
        Command_Script
    }

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enum ReturnType : short
    {
       UnParsed,
       SpecialForm,
       FunctionName,
       PassThrough,
       Void,
       Boolean,
       Real,
       Short,
       Long,
       String,
       script,
       string_id,
       unit_seat_mapping,
       trigger_volume,
       cutscene_flag,
       cutscene_camera_point,
       cutscene_title,
       cutscene_recording,
       device_group,
       ai,
       ai_command_list,
       ai_command_script,
       ai_behaviour,
       ai_orders,
       starting_profile,
       conversation,
       structure_bsp,
       navpoint,
       point_reference,
       style,
       hud_message,
       object_list,
       scenary,
       effect,
       unit,
       looping_sound,
       animation_graph,
       object_definition,
       bitmap,
       shader,
       UNK,
       render_model,
       structure_definition,
       lightmap_definition,
       game_difficulty,
       actor_type,
       hud_corner,
       model_state,
       value,
       network_event,
       value2,
       unit_name,
       vehicle_name,
       weapon_name,
       device_name,
       scenery_name,
       object_name
    }

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    struct ScriptSyntaxChunk
    {
        short ExpressionID;
        short Identity;
        short ValueType;
        short ExpressionType;
        short SiblingPointer;
        short SiblingIndex;
        int ScriptStringOffset;
        byte[] Value; // Len4
        short Unk18;
        short Unk20;
    }

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int string_id_count; //344
int file_table_count; //692

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        public struct Index
        {
            int tag_type_count;
            int tag_type_index_offset;
            int meta_count;
            int tag_info_offset;
            int unkown; //Always 6
            int main_tags;
            int unkown_zero;
            int main_tags_2;
            int unknown;
            string tags;
        }