GEODATA.DAT
Geodata info:
[0] - x dimension of the map / 10
[2] - y dimension of the map / 10
[4] - z dimension of the map
[6] - X-com craft type (ignore this if a base mission)
0 - SkyRanger 1 - Lightning 2 - Avenger 3 - Interceptor 4 - Firestorm
[8] - Alien craft type (ignore this if not a ufo mission)
0 - (No UFO) 5 - Small Scout 6 - Medium Scout 7 - Large Scout 8 - Harvestor 9 - Abductor 10 - Terror Ship 11 - Battleship 12 - Supply Ship
[10] - Terrain type
UFO TFTD 0: Jungle 0: Seabed Trash 1: Farm 1: Pipes 2: Forest 2: Crashed Plane 3: X-Com Base 3: Atlantis 4: Alien Base 4: Mu 5: Urban 5: Sunken Galleon 6: Desert 6: Sunken Liner 7: Mountains 7: Volcanic 8: Polar 8: Coral 9: Mars 9: Artefact Site Stage 1 10: Artefact Site Stage 2 11: Cargo Ship 12: Port Attack 13: Island Attack 14: Colony Stage 2 15: T'leth Stage 1 16: T'leth Stage 2 17: T'leth Stage 3 18: X-Com Base 19: Passenger Ship 20: ??? Crashes, perhaps second stage of ships? Probably easy enough to verify, only I'm too lazy to run a shipping mission without hacking... :P - Bomb Bloke 00:46, 30 January 2008 (PST) 21: Colony Stage 1
(No other values decoded at this time, but probably contains dropship/UFO position(s) on map).