F.E.A.R.

Participate in 100 rank Multiplayer games of any type.

Win any ranked Deathmatch, SlowMo Deathmatch, or Elimination Multiplayer game.

Win every Instant Action map on Extreme difficulty.

Complete the Campaign on any difficulty without using any boosters.

Kill 50 enemies with the 10mm HV Penetrator in any ranked Multiplayer games.

Complete the Campaign on any difficulty without using SlowMo.

Make a mark of some sort to lead you back on some Medkits that you could not carry before. If you so happen to run out of your own because of a big fight you can find them again. This is useful in Interval 11 with the armies of ghosts coming after you. Just make sure that you are able to backtrack to get the Medkits you left behind.

Kill 5 enemies with one SlowMo use in the Campaign or Instant Action.

Win 5 each of ranked CTF, SlowMo CTF, TDM, SlowMo TDM, and Team Elimination games in Multiplayer.

The automatic pistols will collect ammo if you throw them down and pick them back up. Keep doing this and you will have 600 ammo.