Ok I has an idea for a mini game
It's called Duels
2 players are put on a small map, and they are each given the same random class.
They duel using that class, and the winner wins.
Then there's Co-Op Duels
It's the same thing, except 2v2
The only difference is the second players are also given a random class, so you could have a Cavalry rider and a machine gunner vs the same thing