User blog comment:AugFC/MW3 - Review/@comment-92.84.105.123-20111231161301/@comment-1191892-20111231214520

No, most FPSes have some degree of freedom, even if it's only "go up the ladder or along the corridor." Takedown and The Hornet's Nest are good examples of this sort of level design in past games. The problem is a lot of MW3's campaign doesn't even have that much; many of the levels are literally just wide, straight lines consisting entirely of mid-range combat with mid-range weapons.