In this level and The Commander: Evolved, the player takes control of Thel 'Vadamee, the Supreme Commander of the Fleet of Particular Justice during the Battle of Installation 04, and also the Sangheili who would become The Arbiter in Halo 2. The events here take place at the same time as The Maw. This mission is a spinoff of Halo SPV3 and reuses the level design from The Silent Cartographer. Sentinels and Enforcers also swarm the island. Upon arriving, they realize that the Flood has completely taken over the island, killed and infected all the Marines stationed there and are in control of the Cartographer to learn more about Installation 04 and how to leave the Forerunner ring world. Supreme Commander Thel 'Vadamee, along with Spec-Ops Commander Rtas 'Vadumee and Spec-Ops Officer Usze 'Tahamee, travel to the Cartographer island to investigate after contact was lost with a pack of Brutes that was sent there to retake the island. It is an original level, made by the modders, that was inspired by a test map created by one of the members of the SPV3 Dev Team to experiment with playable Elites using the Combat Evolved game engine. The Commander is the twelfth mission (eleventh in a straight playthrough, if selected) of the Installation 04 Campaign in Halo SPV3. 'The Commander of the Covenant turns his attention to the Flood as he investigates the Silent Cartographer'

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