Are you stuck on the alien Campaign and you need help I will tell you some tips on how to beat it quick and easy.
First Tip: make noise, what I mean by that is hiss a lot it will bring a marine close to you and you sneak attack also hit the walls sometimes marines go to it.
Second Tip: be smart, by this I mean do not just charge in where their is a bunch of marines hide then Attack.
Third Tip: use the darkness, You may not know this but the darkness is your alley it will make the game easier if you take out all the lights The marines will not find you then you can kill them.
Fourth Tip: Run, sometimes you got to run when your in the predator fight if your low on health just run until it comes back and don't worry the drones will stall the predators.
Last Tip: Hide, What I mean by this is hide in the Dark hide in vents and then Attack.
I hope this helped you.
