Meta

The Meta is the unknown entity that is hunting the Freelancers and stealing their Armor Enhancements and AIs in the Recovery One Mini Series and the Reconstruction sequel to the Bloodgulch Chronicles. It is (currently) represented by a Spartan-character model with the EVA helmet permutation and is the only character thus far not to have the Mark VI shoulder pieces. Due to it's carving of "We are the Meta" it is possible that as a result of collecting and implanting multiple AIs, it recognizes itself as not a single being, but a collection of entities.

Recovery One
The Meta first appeared in the Recovery One miniseries as someone (or something) that was hunting down Freelancers. Most of Agent Washington's Priority One signals were a result of the Meta's actions. However, the one signal that was not caused by the Meta, Agent York, would prompt the Meta to begin hunting down Recovery One. It presumably killed Freelancer North Dakota and left the agent's sister, South unconscious at the scene to slow Washington down. It tracked down Washington and South while Washington was convincing South to implant the Delta AI. The Meta was unable to secure Delta at that juncture due to South informing it of a timed charge on Washington's armor. Given the option of it being able to retrieve Delta later, the Meta allowed South to escape.

Reconstruction
'Spoiler alert. The following section contains plot details to Red vs Blue: Reconstruction' It is revealed by the lone survivor of Outpost 17-B: Valhalla that the entity that attacked Recovery Six and Recovery Nine is called the Meta. According to Agent Washington, for reasons as of now unknown, was spared by the Meta, the entity that was described by Private Walter Henderson matches the profile of the being he had been tracking. The Private being debriefed on the incident indicates that the grounded ship had someone in it, "she looked like [Agent Washington]", and that after leaving Blue base he could no longer see the Meta. Recovery Command tells Washington that the Meta may be in possession of the Omega AI. This indicates that the downed Pelican reported by Recovery Six and Nine is the same that Tex and Wyoming left Blood gulch with, and that the Meta stole her armor enhancement and AI. As of Episode 4, it has shown the ability to manipulate a recording of Command to trick Sarge into eliminating Washington. Later, it demonstrated an ability to manipulate time just like Wyoming, which means that it has acquired both the time-loop mechanism and Gary( who is the only AI who can use it. However, it is wounded in a battle with Washington, Church, and Caboose when it attempted to kill South. Its current location is unknown.

Pop Culture
It's intention to kill and steal the enhancements from the other freelancer agents is somewhat comparable to Gabriel Sylar's rampage from the popular American TV show "Heroes"