1# I think halo 5 multiplayer should have larger maps
2# more unsc vehicles ( especially flying ones)
3# new game mode like mammoth against flying vehicles ( one team has a mammoth whit a driver ''not IA'' an they should defend it until reach an objective, against the other team who has lots of flying vehicles who wants to destructs the mammoth)
4# more weapons to create loadouts
5# more realistic driving ( the halo4's vehicles looks made of paper ) they should crash when hit walls
6# dynamics maps scenario, like snow, rain, earthquakes ( crashable walls would be nice too...
7# more players to btb