The big maps are nice for their random activity, but for those who crave orgnized battles to victory, their size is a handicap. The big maps are more like random activity with missions that provide some strategy, but the missions are one sided, meaning only one side is getting organized and strategizing. The response is a random one. Rolling bases usually involves superior numbers not superior strategy or skill.
I thought mini arenas the teams can sign out would be cool. Opposing squads or groups could open a lobby and fight it out. The maps would be semetric and have 3 or 4 bases per side. Arena rules and set up would be variable and set by the person who opens the lobby.
The benefits over MA play are that you can coordinate all players and a strategy before hand. Both teams study the map, decide on how many players, lives etc. and then make a gameplan for taking over the map and winning the game. Gameplay starts when both sides hit the READY button. Scores are local to the single event.
There could be team sign ups by posting start times and open slots just like missions. The mini wars would last an hour or two, with victory coming when one side captures all the bases.
Could even lead to mini war leagues. It's different from scenarios which are limited to a battle, that seldom includes captures or total victory.