How to investigate the Anomaly, get out of there alive and extract the Giraffe Toy Relic.

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

Previous missions:
Bad Signal    • COD MW3 Zombies, Bad Signal Solo miss...  
Countermeasures    • COD MW3 Zombies, Countermeasures Solo...  

00:00 Preparation
01:39 Starting the mission
03:42 Crystals and runes
09:22 Obelisks and relics
12:02 Boss Fight