Call Of Duty: Modern Warfare - 14 Tips & Tricks The Game Doesn't Tell You

12. Door Tactics

Actually caring about doors is another wrinkle to COD's iconic feel.

Now they'll need to be opened by holding square/X, but you have some additional options:

- Sprint into doors to open them much faster.

- Melee them to get around starting a sprint if you're already close, and do damage to anyone standing on the other side.

- Aim down sights while pressing square/X and you'll get the "Peek Door" option, barely opening the door and letting you get the drop on whoever's in the next room.