From Launchpad:
I hope this gets implemented. I think it would be a lot of fun, but only a few people have commented on it so far.Basically, when a player dies from suicide, core dump, whatever, they will remain in that spot 'frozen' with a small zone around them (the size can be customized by the admin). Once a teammate passes through that zone, they will be unfrozen and either continue playing from that spot or respawn at an available spawn point (also add a zone_spawn_distance option so they don't respawn inside a fortress zone, for example, and ruin defense, etc). Also add a separate walls_stay_up_delay_frozen option. Can probably be expanded further, that's what we thought up on IRC.