I absolutely despise Join in Progress. If I am going to actually play the crucible (which in itself is competely terrible), then I don't want to join teams that are losing by 4000 points. Even if I still get the most kills out of anyone in the game, I would still lose simply for the fact that it only puts you on losing teams. There needs to be an option to disable joining in the middle of a match, just because that would actually make sense. For exmple, this game: http://www.bungie.net/en/Legend/PGCR/1/4611686018429575659/2305843009215059031/354410257?_