The Steam version of the new Reborn DLC for F.E.A.R. 2: Project Origin is now available, and though Monolith announces this should also be on sale for $9.99 USD via other portals like IGN (Direct2Drive) and Digital River, it has not shown up elsewhere yet (the manual patch for the previous DLC release trailed the Steam release by a week). Steam also has the automatic patch to update Monolith's scary shooter sequel with support for the new DLC and the new slow-mo deathmatch mode. Here's word on Reborn:

Experience four brand new single-player levels in this additional DLC campaign for F.E.A.R.2! Coinciding with the events seen in the full game, you will experience the chaos of Alma’s aftermath from an entirely new point of view: that of Replica Soldier 813. Your mission begins with an orbital Powered Armor drop to reinforce your fellow Replica squad… But not everything is as it seems. Supernatural events run wild in the apocalyptic remains of Auburn. Another voice is beckoning you; contradicting orders from Replica command. Find out the answer to this, and many new questions, in the DLC campaign F.E.A.R.2: Reborn!