So I beat the Marine and the Alien campaigns of the new AvP game. Both were rather enjoyable and I had quite a bit of fun with them. However, the Predator campaign is by far the most frustrating for me, strangely enough.The thing is, the whole stealth kill/fatality system is kinda broken. If you don't know what I mean, that's when you sneak up on a guy and insta-kill him by tearing out his spine or something. That'd be cool, except while you're in said animation (which can take up to several seconds), other enemies can still shoot at you. It's really lame when -apparently- I'm so busy gutting this marine that I don't even care about his friend shooting me in the face and killing me.
Short version: fun game, but really fucking frustrating at times.
Edit: Alright, finished the Predator campaign as well. Thankfully it becomes infinitely less frustrating once you gain access to your full arsenal. After that you're pretty much unstoppable.