I think it would be epic to see more objective based games, so here’s a few:
Capture the Flag
I’d be fine with either the flag in the middle and both teams must fight for it. Or both teams having a flag and you need to steal the opposing. Or you could have it so that one Team is on the defensive protecting the flag and another team is attacking the flag. Then after the game the teams switch roles. Probably no longer than a 7 minute game for one role.
Escort
One team is charged with defending a dolyak as it leaves from a supply camp, and the other team has to kill the dolyak. Or maybe both teams have a dolyak, and they race to keep it alive so they can build a trebuchet that destroys the opposing teams base.
VIP
10 person game, one person gets a mark, everyone then has to try to kill that person. Person gets points for as long as hes alive. Enemies get X amount of points for killing the target.
And finally just a 5v5v5 game!