i have changed the list a little but it still includes
.halo 4
.reach
.odst
.halo 3
.halo 2
.ce
.armor from all games
.all vehicles apart from scarab + mammoth in multiplayer/forge
.playing as spartan,elites,odst,grunts,hunters
.larger maps
.all emblems
.no xp codes
.halo 4 ranking
.specilizations
.shotgun,saw,sticky detonator and needler in loadouts
.halo legends mark iv
.spartan ops
. firefight
.armor for all classes(above)
.alternate campaign
.visor colours
.hunter assasination
.gravity hammer assasination
.pelicans pick up/drop vehicles
.reach helmet attachments
.new weapons
.new Prometheans
.dual wielding
.rank 50 unlock blade
.when no ammo punch and tackle
.face customization
.if shot enough helmet comes off
.sprint then b=evade
.warthog troop transport
.promethean armour skin all armour