The Crimson map pack is the first DLC map pack released for use in War Games and Forge in Halo 4,
It includes 3 maps:
- Wreckage
- Harvest
- Shatter

8 additional achievements
- Now They Fly?
- Size Is Everything
- ODST
- Bigfoot
- David and Goliath
- Clay Pigeon
- Special Delivery
- Pump Yer Brakes