How about a warzone where the objective is to stay within the confines of the arena. Each player "in combat" within the arena builds points. The first team to reach a certain number of points wins. Surrounding the arena are fire pits, acid pits or voids. Ramps lead up to platforms that surround the arena where ranged can sit up and cherry pick if they like. In the center of the arena could be another trap or void. Could be fun
There would of course be no timer on the spawn door and those who die must run back to the arena area to begin racking points up.