Sounds about right.I'm probably about half-way through the campaign after one sitting on the second highest difficulty, and I have to say I'm enjoying it so far. Controls are your standard Call of Duty-fare, but not nearly as polished. The aiming isn't super precise, and the loader suit thing is kind of spastic when you're fighting with it. That said, if you go in without really having expectations other than to relive the Alien universe, see the sets from Alien 2 in a game, and fight for your life against swarming alien bastards, you're probably going to find some form of enjoyment out of it.
The game is so-so, but I find it quite enjoyable. Fighting humans isn't so great, that's probably my biggest gripe. I appreciate they're changing up the formula a bit, but at the same time fighting the mercs is probably the most tedious, and difficult, part of the game. There's one mission part way through the game where you're stripped of your weapons and playing a stealth part, but I have to say it was a highlight for me because of how tense it got at parts. I like the weapon customization options, and for the most part, it's pretty solid shooting controls and what not and the weapons are fun. Finding 'Legendary' weapons belonging to movie characters is a highlight, especially since they're a bit different than the base weapons. It's kind of like getting one of the Specialty weapons in Farcry 3 where they're upgraded for you, and often with unique characteristics.
My recommendation would be to wait until this game inevitably finds itself on the cheap and just enjoy it without expecting a AAA shooting experience. I haven't gotten to multiplayer yet, but I've heard good things. Hopefully it's like Alien vs Predator.