The overhead-camera tank fight minigame is a good start for the concept, but currently mind-numbing. Named something to do with ballistas I think. Plays exactly like pic related with some sparsely spawning single-shot powerups.

If there is even a single good player besides yourself, there are absolutely no mechanics to speed up the end of the match and no timer. A fight can last until the extinction of the human race and there is no increased pressure or increased offensive power as time goes on. HEALTH drops even spawn periodically.