If the round times out, what decides the winner? The amount of survivors or the amount of kills? It needs to be kills. Kills should be counted up only at the end of the round or if you’re gibbed. So incap, revive, incap does not count as 2 kills. It shouldn’t be based on survivors since teams could start off unbalanced.
Also, I think it would be very helpful to have some minor objective that when completed counts for one kill, and spawns on the map in one of a set of predetermined locations. This way you award a team for moving around and looking for it rather than just sitting back and camping and hoping the other team makes a mistake. Also, you could find it and set a trap which would be one strategy to the objective. There could be 2 to help make that not as powerful of a tactic.