MW3 Zombies - The Fastest Way to Max Your Containment Level!

This guide will show you how to increase your containment level, a new addition to Modern Warfare 3 Zombies added in the Season 2 Reloaded update for Call of Duty, in the fastest and most efficient manner. This is showcasing a solo run, but your progress can be expedited if you have other teammates.

This system is very similar to that of DMZ's, where you will receive perks for completing contracts; however, unlike the process in DMZ, you do not have to exfil in MWZ but rather complete a contract, as they will stack cumulatively whilst playing the game.

0:00 - Quickest Method & Useful Attachment
0:44 - How Containment Levels Work
0:59 - The Method in Action
1:50 - What Happens if You Lag Out