- last post: 01.01.0001 12:00 AM PDT
New Chief in Town - 30 GS: Beat the first level using only the Pistol and SMG, plus grenades.
The Perfect Shot - 20 GS: Kill three enemies with one Spartan Laser shot.
Not the MC - 10 GS: Play an entire mission without jumping.
[Edited on 06.09.2009 12:53 PM PDT]