Finish the Game on Normal Without Changing the Difficulty

Kill 30 Enemies with the SAS-12

Kill an Enemy While Playing as an Alternate Character Costume Other Than Drake

Won 100 battles.

Kill 30 Enemies with the M9

Kill 30 Enemies with the Arm Micro

Used "Release" for the first time.

Won a battle with a tactical bonus of x2.0 or greater.

Play in the Swimming Pool on the Cruise Ship

Kill 30 Enemies with the G-MAL

Kill 20 Enemies with Gunfire While Hanging

Kill 30 Enemies with the Mk-NDI

Defeat 20 Enemies by Blind-Firing While in Cover (without aiming)