A fan's must have! How can you not like this game?
Ok, that was a lengthy intro, but hey, this game deserves to be played. It does loose some points by having a short-ish solo player campaign, but it's mainly the effect of "I cannot get enough of this, why is there not more?"
The story is great and inviting. All 3 campaigns are worthwhile.
This game is best played with a good graphics card. It is all in the light effects, and the details. You have to let yourself sucked in, and once you are, you'll probably jump screaming a few times.
I'll just a point by point ideas in 2 categories: fan, and not fan.
FAN:
-All you could ever dream of in an AvP
-Amazing light play, and we know how much importance that is in AvP
-Great multiplayer action! And dedicated servers on the way.
-It's just so much fun!
-Playing any of the 3 races is a lot of fun!
-Incredibly satisfying execution and stealth kills (and extremely graphic)
-Great challenges
NOT A FAN:
-For an FPS, it's quite mele based
-Hard to get into the playing style if you haven't tried it before
-Still good graphics and great execution moves
-The story won't make much sense if you're not a fan
-Hard to get attached to any character
Basically, if you're a fan, or just appreciate AvP play this! My argument is just the following: you can collect human heads as a predator and actually hold down humans to get jumped by facehugers as an alien. Need I say more?
If you're not a fan... well there's loads of other FPS out there, and I'm not sure if this mele based one which is part of a series is interesting to anyone not into the whole world of AvP.
But for both, in all honesty, if you're up for an extremely satisfying power-trip where you hunt down other species, decapitate them, collect their heads and spines, as well as eating their brains.
Hunting and fatalities! Extremely gruesome! Satisfaction guaranteed.