F.E.A.R. 2: Project Origin Discussion
So trainers are the only method at the moment though I haven't seen many trainers aside from Cheathappens and I've only seen the Cheathappens trainer for the 0-day 2255 build update.
(Game is version 2240 after install but I haven't found a changelog on what the patch actually alters, guess I'll known if someone makes a unpacker as it adds a new archive for the game for the updated files.)
* Updated game trainers and cheats daily
* Get notified when new cheats are added
* Request which games get new trainers
* Priority support with any problem