For a more "realistic" approach to this whole issue my idea is this: Respawn is only available when you have a. a gun and b. at least one bullet for said gun. I realize there are server issues that come into play but when I break my legs due to some odd issue in the middle of no where and the respawn button doesn't come up for me and crawling to the nearest zombie would take a while; This would be nice. I'd probably kill myself if I were in that situation as well. (honestly I'd probably be a zombie in the first place and wouldn't have made it this far) It would also remove the immediate respawn on start as you could probably kill yourself quicker on zombies before you find a gun to kill yourself.