Here is the full list of all 47 F.E.A.R.: First Encounter Assault Recon achievements worth 1,000 gamerscore.
Completed Interval 8 in the Campaign.
Completed Interval 7 in the Campaign.
Used 50 armor vests.
Used 50 Medkits.
Completed Interval 3 in the Campaign.
You killed 5 rats and crows.
Played 1000 ranked Multiplayer games.
Played 100 ranked Multiplayer games.
Captured 50 flags in ranked CTF or SlowMo CTF games.
Finished a Multiplayer game with a negative score.
Won 5 ranked CTF, SlowMo CTF, TDM, SlowMo TDM and Team Elimination games.
Won a ranked Deathmatch, SlowMo Deathmatch, or Elimination game.
Killed 50 enemies with the MOD-3 in ranked Multiplayer games.
Killed 50 enemies with the MP-50 in ranked Multiplayer games.
Killed 50 enemies with the Type-7 in ranked Multiplayer games.
Killed 200 enemies with the N6A3, AT-S or M77 in ranked games.
Killed 50 enemies with the AT-S in ranked Multiplayer games.
Killed 50 enemies with the N6A3 in ranked Multiplayer games.
Killed 50 enemies with the M77 in ranked Multiplayer games.
Killed 50 enemies with the turret in ranked Multiplayer games.
Killed 50 enemies with the ASP in ranked Multiplayer games.
Killed 50 enemies with Round House Kicks, Flying Kicks, or Slide Tackles in ranked MP games.
Killed 50 enemies with the 10mm HV Penetrator in ranked Multiplayer games.
Killed 50 enemies with the G2A2 in ranked Multiplayer games.
Killed 50 enemies with Punches or Rifle Butts in ranked Multiplayer games.
Killed 50 enemies with the VK-12 in ranked Multiplayer games.
Killed 50 enemies with the SM15 in ranked Multiplayer games.
Killed 150 enemies with Headshots in ranked games.
Killed 50 enemies with the RPL in ranked Multiplayer games.
Killed 50 enemies with the AT-14 in ranked Multiplayer games.
Completed Interval 2 in the Campaign.
Complete the Campaign on any difficulty without dying.
Complete the Campaign on Extreme difficulty.
Complete the Campaign on any difficulty without using any boosters.
Complete the Campaign on any difficulty without using SlowMo.
Win the Campaign on any difficulty except Low.
Find every Health Booster and Reflex Booster in the single player campaign.
Kill every enemy in the Campaign.
Win the Campaign using less than 500 rounds of ammo.
Win every Instant Action map on Extreme difficulty.
Complete Interval 10 in the Campaign.
Gather every phone message and lap top in the Campaign.
Kill 3 or more enemies with a single N6A3, AT-S or M77 in the Campaign or Instant Action.
Kill 10 enemies with barrels, fire extinguishers or fuse boxes in the Campaign or Instant Action.
Kill 5 enemies with one SlowMo use in the Campaign or Instant Action.
Complete every Instant Action map on any difficulty except Low.
Kill yourself 5 times in the Campaign or Instant Action.