In negative: quite honestly, if you will only play solo, then I advise you not to pay the full price ... The campaign is impressive, but suffers from the same symptoms that many recent FPS: it is short. Then, taking his time, and seeking every single player trophies, it goes up, but in absolute terms it leaves a little to the hungry. And it's really, really a shame.
I have not yet tested the co-op campaign or multiplayer, but I intend to tackle me soon. I had rather positive feedback about the latter; by cons, once the DLC passes by fashion and new map-packs will be available for an umpteenth payment ... Sad reality of trade in current games.
In summary, if the campaign was not as short (well, it does not last 2 hours either, but do not expect to achieve 10 am if you are a regular FPS, clearly), I would have put a 5 star without hesitation . In fact, if that were possible, I would have rated 4.5.