Steam Achievement...
Steam achievements were added recently and that's awesome but after looking at it, why in the world would one be for killing teammates 100 times? Why do devs wanna add stuff that actively makes the time worse for all parties? Bad for you because you can't lock onto teammates along with being rude, bad for teammates trying to survive, bad for enemies that just wanted kill points. Frankly if you already got that I wouldn't ever wanna play with that person because how did that happen 100 times? Even with beams and nukes it's reduced damage. Maybe a dozen times, maybe two for veterans, but 100?! Just a rant, I hate achievements like that.