Better Maps: Bigger, Maybe give the map more height for air vehicles, Possibly very big maps for Big team battles (Have more players in a game, somewhere around 50 - 60 players a game)
Less Boundaries: Give players more freedom with map roaming, Maybe make it possible to enter space, or have space battles.
My personal Ideas: 1 : Have a game mode where there are 2 battles going on at the same time, A space battle and a ground Battle, Space battles could be giving air support while battling other teams air support ship, and ground battles could have an objective.
2 : Instead of the whole random theme of Spartans killing each other for no reason, they could make it look like training or have it Spartans vs ???.
3 : While everyone is fighting there could also be neutral AIs running around shooting at both teams.
