There should be a game type that is assault/defense.  A/D is where one team is defending something (like a planet or star) and one team is trying to capture/take over said object.  Assault would win if they take over the object, Defense would win if they can hold off the Assault team for 2 hours or so (time limit can be adjusted).

I think we should have this game mode (or different types of game modes like King of the Hill, Colonization Race, etc.) so that we can have a variety of things to do.