| Release Date | January 28, 2014 |
| Location | Mexico |
| Remakes | None |
| Release Date | Location | Remakes |
| January 28, 2014 | Mexico | None |
Medium sized town. Force the enemy back across the dry riverbed in classic engagements. – Containment
Mountains and cloudy skies are seen in the distance with abandoned streets, construction, and empty store on the outskirts of Containment.
The Field Order will trigger the church bell to ring and seconds later the center bridge will blow up, taking out the nuke truck and killing anyone near the blast field, it will also set off the car alarms around the map and anyone near the radioactive debris will have their screens tinged green until they respawn.
Many doors and windows around the map can be entered after blowing off the red Ghost plywood, opening new routes and sightlines, the window on the red striped building, window in the restaurant, a door in the lower part of the church, a pair of doors in the bar and also a gate near the bakery.
All the piñatas around the map can be shot down, spreading confetti and candy all over the place.
The Extinction Egg can be found on the northwest corner of the map by going to the top floor of the red striped building and looking next to the transmission sign on the green building. Players who find all four Extinction Eggs in each of Onslaught’s four DLC maps will earn a bonus 2000XP for completing the operation.