Achievements:ACHIEVEMENT – HOW TO UNLOCKThe Geek (25 points) – Beat the game on Recruits difficulty.Shark Man of the Delta (50 points) – Beat the game on Regulars difficulty.Demo Dick (75 points) – Beat the game on Elites difficulty.SNAFU (5 points) – Beat mission 1 on any difficulty.KISS (5 points) – Beat mission 2 on any difficulty.GNBN (5 points) – Beat mission 3 on any difficulty.PFDL (5 points) – Beat mission 4 on any difficulty.FUBAR (5 points) – Beat mission 5 on any difficulty.HUMINT (5 points) – Beat mission 6 on any difficulty.KATN (5 points) – Beat mission 7 on any difficulty.DOY (5 points) – Beat mission 8 on any difficulty.Double Tap (30 points) – Beat an entire mission using only the pistol in Single-Player mode.Getting Your Gun Off (30 points) – Kill at least one enemy with every weapon in the game in Single-Player mode.Frag Out! (25 points) – Kill 20 enemies using grenades in Single-Player mode.Now THIS Is A Knife (30 points) – Kill 30 enemies using kill moves in Single-Player mode.Never Knew What Hit Them (20 points) – Kill 50 unalerted enemies in Single-Player mode.Improv (25 points) – Kill 20 enemies using explosive objects in Single-Player mode.Guns Don