Haven't completed a single COD game on veteran. COD4's "No fighting in the war room" was too frustrating, COD5's magic fuseless grenades were too unfair, COD6 I simply got rid of the game before I ever bothered to finish it (and the story pissed me right the fuck off), COD7 the incredibly unfair AI and glitches in cover made it too hard. And the russian juggernaut is bullshit.