Command Post Sigma is a Replica Forces outpost that appears in F.E.A.R. 2: Reborn. It is where Foxtrot 813 and various other Replicas gather to await orders from Replica Command. The post is located in the city of Fairport. It is a small room inside of an abandoned Armacham Technology Corporation facility, possibly even the company's headquarters. Replicas guard the post in large numbers, ensuring that Armacham Technology Corporation Forces don't take them by surprise.
F.E.A.R. 2: RebornEdit
The command post is seen towards the beginning of F.E.A.R. 2: Reborn, when Foxtrot 813 is led there by other Replicas in his squad. Upon arriving at the post, 813 slips into a hallucination, in which his fellow Replicas become his enemies. During the hallucination, he is confronted by Paxton Fettel, who tells him that he needs 813's help to be reborn. Upon leaving the hallucination, 813 realizes he has attacked and killed his entire squad, and that the Replicas now see him as a traitor. The location is never seen after 813's hallucination, and is presumably abandoned.
- According to Foxtrot 508, the Command Post Sigma has no doors thus questioning the intention of making the location as Command Post; while the Command Post has no door that leads out, there is a cargo elevator.