Two personoids can NOT always co-op kill a resident.
I think it is a serious BUG. When you are trying to kill somebody, the resident just escapes the grip even though neither of the personoids let go of the F key and there is nobody else around. After 4-5 times it still failed. However I have already died with my character in the game once or twice by personoids co-op killing me. That did not work immediately, only on the second attempt.

The tutorial says nothing about personoids not being able to co-op kill a resident.

I wanted to buy skins because I thought it was a good game, but now I'm reconsidering because if you are a personoid, and people know about this bug, then you should avoid doing that and scanners, oh and logs... There is almost no way to survive the 3rd round.