I don't understand why stupid team mates keep trying to kill the invincible player. Everytime Horizon comes up, at least one person glitches behind the glass lift in one of the outer rooms. And everyone continually goes there to try to kill them.
Why bother? It's out of the way, you don't ever have to pass through and they will eventually come out if they aren't getting kills.
human nature.
Revenge is a very strong emotion in games. Just watch how upset people get when you kill them in a game like GTA.
If people get killed in a way they don't like, or get teabagged, they quite often turn it into their mission and hunt you down and gain revenge. Just watch some of the epic camping videos from Black Ops 2 where people camped with the riot shield and trophy system in the top room on HiJacked.
People would throw themselves at that room giving the camper easy kills.