The first option and the last 4.

Whats up with the gun combat? no duel pistols anymore? shotguns that have to be shoved up someones nose to do anything? And I am sure this might blow the minds of some people but bullets come out of the gun straight not at an angle no matter how your holding it. Lots of glitches with the SP as well, not saying the first was perfect but Its annoying to go through an entire level and not being able to smack someone cause the games doesnt want to.
And wheres the Large maps loaded with tanks and other goodies to play with :c 16 plays is fun and all but i expected alot more.