MP; insane good maps, weapons and camos. Boots on ground no advanced movement or any other complicated bs. The fact we could unlock new guns by spending earned tokens was a huge W! Number one fav mp
Campaign; the characters was on another level, introduction for Frank Woods was the best character i ever seen in a cod game. The story was perfectly executed, it was gritty, brutal and straight to the point no bs heroic cutscenes what so ever . My number one favorite campaign
Zombies; the maps was untouchable!!! the zombie design, straight up waw vibes from start to end. Round based zombies was the real deal. The strafeknifing in zombies hit so hard, number 2 best zombies after bo2 hands down.