You must be where you have to trap the xenomorph, sorry but I can't help, I've never actually gotten that far legitimately, on PC I used a trainer to get the feel of things, but since my computer died I can't do that anymore till it's fixed. Just keep trying, use the environment to your advantage, the rewiring boxes, radios, make noise makers, etc, and my personal survival tip. Don't use the vents unless you have no other choice, fucking things are death traps.I haven’t played it in a bit cause it was so hard but i remember using the flamethrower