There is a definite problem with techs healing gun. The game always crashes when you're using it well.
Me and another player did a test on 7 matches, both of us tech, and each one crashed in less than 2 minutes. This presents a large problem. Not only do you have to tell others not to use tech like tech was meant for, (cause lets face it pulser isn't that great) but if one team is tired of losing, the easy way out is to just crash the match, and this can happen endlessly, even when you're not trying to get it to happen.