While I do agree that they are insanely buggy, I don't really mind them. The challenges almost always require the use of something that is only available to that class, which I would say is exactly how it should be. It's not really the team who set up the challenges who is at fault, rather the balance team for making some of these items so poorly performing that it's like walking on coals to complete them. Also, the servers SUCK in this game, so it's not surprising half the challenge things don't count when even half the bullets don't count either. Not the fault of the team who thought up challenges.
What I would like to complain about though is locking the skins behind playing certain game modes. I'm a support player, so I have practically no skins because all the challenges for that require me to play small scale or redsuck, which I don't want to do. It should be time or kill or SOMETHING based in the actual class.
