Can't find it in steam search.

please

On my first playthrough I met with the corrupt cops and killed them, but weirdly enough I got the achievement for one of the other endings. I later got both other endings as well then got the corrupt cops one again, and still no achievement . How can I fix this? Also how do I ♥♥♥♥ off the lady scientist and get the battle suit?...

First come, first served

Hey can we get an option to change mouse sensitivity mine is way too fast