Now for u guys who requested credit

Icefields base- Matooba
Bases (the wide flat ones)- Killer Kiwi
Bloodgulch bases- modmaker 343
Hogbases- also Killer Kiwi
Pelican Bases- {WK}H guru and the GSD Mapping Team 
Npelican scenery- Tiamat
Doors- unknown creator
Sniper Tower- tomas forceville

Halo editing kit- Gearbox software
Halo- Bungie ;D