If you are playing Modern Warfare 3 Zombies, you must know about the new Containment Level feature added with the Season 2 Reloaded update.
So keep reading our guide as we explain the Containment Level system while sharing tips on how to level up the the mode fast and earn its different tier rewards.
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What is Containment Level in Modern Warfare 3 Zombies
Containment Level is an Exfil streak system in Zombies that players can maintain and level up by doing the different contracts in Urzikstan and successfully exfil out.
It is a great system that rewards players consistent with their Zombies runs, as the levels are associated with tiered rewards that you can avail after reaching a certain tier and level.
That being said, if you fail to exfil out safely in a match, it will lower your Containment Level by one Tier instead of resetting it. Moreover, the the level you reach in the mode in Zombies is tied to Operators.
So if you reach a certain level in a particular Operator, if you select a different one, you will have to level your Containment Level again.
How to level up Containment Level fast in Modern Warfare 3 Zombies
To earn Containment Levels fast, depending on your loadout and how well-versed you are in the game mode, you can either focus on grinding a high-tier contract or a low-tier one.
You get one Containment Level for completing Tier 1 contracts, two for Tier 2, and three for completing Tier 3 contracts. So, if you don’t have a decent loadout, we recommend farming the Tier I zone Tierracts, as they are very easy to complete and much safer than the others.
On the other hand, if you are equipped with gold armor and the best weapons and perks, you can Pack A Punch your weapon to level 3 and farm the Tier III zone contracts.
All Containment Level tiers and their rewards in Modern Warfare 3 Zombies
Here are all the Containment Level tiers and their rewards:
| TIER | CONTAINMENT LEVEL | REWARDS |
| 1 | 2 | Start with 500 Essence |
| 2 | 5 | Start with five Armor Plates |
| 3 | 8 | Start with 1,000 Essence |
| 4 | 12 | +30% off Perk Machine Cost |
| 5 | 20 | Start with 1,500 Essence |
| 6 | 30 | +30% Contract Essence Rewards |
| 7 | 40 | Start with 2,500 Essence |
| 8 | 50 | +50% Off Mystery Box Cost |
| 9 | 75 | Start with 5,000 Essence |
| 10 | 100 | +20% Off Pack-A-Punch Cost |
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