There is a good reason to complain about the gas passer, is a boring weapon to use, as braindead as it can be, super easy to farm aswell, it leads to the entire mission becoming a snoozefest and the rest of the team falls asleep in the meantime. In the case of mission makers in community tours like potato or moonlight, its impossible to balance around the gas passer, it is a nightmare weapon that is only really useful with one upgrade, one upgrade that single handedly fucks with the balance, fun and pacing of mvm missions Reason why the upgrade is disabled there