If there is one genre of gaming that has become almost a mascot for the industry--its the shooting genre. Reasonably so, because who doesn't want to relax in their living room with a rifle in their hand, scrambling for headshots? 2012 was a fantastic year for shooters, especially in first person, here are some of the games that fully satisfied all of gamers' carnal urges.
I did not play spec-ops the line so have no opinion.
I was not expecting very much from Black Ops 2 in terms of innovation or game quality and was not disappointed. They managed to make the only two things that were fun about Black Ops not fun: Wager Matches and Zombies.
Halo 4 is the only one I keep going back to and this is probably because of it being ahead of the others in-terms of online multiplayer. The lack of custom games options was a huge disappointment though and Spartan Ops is very hit and miss.
Overall I personally would have given best shooter to Halo 4, but the lack of custom games is going to kill the life of this game. If 343i want this game to be played even half as long as Halo 3, then they need to fix custom games and add in a file-share browser.