NoNewTaleToTell: Alpha Prime is generally rated mediocre to bad, and I enjoyed it overall. Sure it has a few things that made me consider quitting it forever and ever (and ever) like aimbot enemies, the soundtrack consisting of all of about four songs (and two of them only appear in cutscenes!), aimbot enemies, generally unspectacular level design, oh and before I forget, aimbot enemies. As a fun but utterly forgettable FPS it did its job.
Yup, B-quality FPS's generally get low ratings. I don't know what those people were expecting but a lot of them are not bad at all. I liked Alpha Prime because it has nice leveldesign and an older protagonist, which you don't see that often in these sort of games. It did have a case of cringeworthy voiceacting, but that is rather hilarious to experience.
If you get the chance, play Mace Griffin and Pariah as well.
I really liked playing Kane & Lynch and that reviewer that got fired because of bashing it was completely deserved. :^P
No really, the office heist and escape were the closest thing to playing a scene from the movie Heat, though the story is at points throwing sand into their own gears, like WTF were they doing in Cuba at some point, which detracted a lot from the whole experience. It's a game with highs and lows because of that.