I had high hopes for this game. The premise is cliched, but well worn. Secret Government experiment goes wrong....horror ensues.
Unfortunately this is marred by lazy game design.
Gameplay is linear, as to be expected of a game of this type. That isn't a problem when done well, look at COD4, but here it is almost painful, with the plot seemingly incidental to each action set peice. Here's a free tip to the designers, infinately spawning enemies to drive you in a particular direction are not big or clever.
The control system is adequate, but I still can't understand why any game has R2 as fire, when your 'trigger finger' naturally goes to R1.
Graphically, there are a few nice effects, but generally it looks like a PS2 game that has en given a lick of Hi Def paint. They certainly don't showcase the PS3's graphical potential.
In short, I think it is trying to be to Vietnam what Wolfenstein was to WWII, and it could have been. Unfortunately, for a 'survival horror' game, it only succeeds in being a below par FPS.
My advice, for what it's worth, save your money and wait to see if the new Wolfenstein is any good