Keeping arsenal in coop
in Quake1 it was very cool, if player dies he spawned with the same arsenal (also weapons and ammos) what he brought from the previous map. This way the player doesn't need to waste minutes again and again to find weapons. In quake1 the players also can found their dropped arsenal in a baskpack near his corpse. I know its not quake, but the gameplay experience would be better I think.