How to investigate the Anomaly, get out of there alive and extract the set of secret items the Drum, MMA Gloves, Pristine Mirror and Perforated Target.

Easy mission guide for solo or squad completion of Act 4 Story (aka Tier 4 Story) Mission Countermeasures in Call of Duty Modern Warfare 3 Zombies mode.

00:00 Preparation
02:06 Mission Start
02:41 Obelisk #1: Perforated target
03:34 Obelisk #2: MMA gloves
05:28 Mission part 1 (escort)
09:57 Mission part 2 (infested stronghold)
13:40 Obelisk #3: pristine mirror
15:52 Mission part 3 (outlast)
20:01 Mission part 4 (boss)