Extra Credit
10Complete 75 mission specific challenges
Unlocked: 30 Aug 2014 22:22:36
Complete all Operation F mission challenges
Unlocked: 30 Aug 2014 22:22:36
Complete Operation F
Unlocked: 30 Aug 2014 22:02:04
Complete Operation F, Mission 4 with the Blind and Thunderstorm Skulls active
Unlocked: 30 Aug 2014 21:46:44
Silvertip
10Destroy all Mega Turrets with the Grizzly tank in Operation F, Mission 2
Unlocked: 30 Aug 2014 21:40:00
Terminated
10Complete Operation E
Unlocked: 30 Aug 2014 21:12:40
Foot Soldier
10Finish the objective without using any vehicles/turrets in Operation E, Mission 4
Unlocked: 30 Aug 2014 21:09:57
Complete Operation E, Mission 1 with the Hollow and Black Eye Skulls active
Unlocked: 30 Aug 2014 20:58:45
Evacuated
10Complete Operation D
Unlocked: 30 Aug 2014 20:53:38
Brute Force
10Finish the objectives using only the Brute Shot, melee and grenades in Operation D, Mission 1
Unlocked: 30 Aug 2014 20:47:43
Switched Off
10Complete Operation C
Unlocked: 30 Aug 2014 20:43:43
Kill a convoy target with every stationary gun in Operation C, Mission 3
Unlocked: 30 Aug 2014 20:37:03
Switched On
10Complete Operation B
Unlocked: 30 Aug 2014 20:29:17
Prevent all Jackals from regenerating their shields in Operation B, Mission 3
Unlocked: 30 Aug 2014 20:21:16
Skull Combo
10Complete any mission with the maximum number of Skulls active
Unlocked: 29 Aug 2014 20:33:00
Overrun
10Complete Operation A
Unlocked: 29 Aug 2014 20:11:22
Keep all Wolverines intact in Operation A, Mission 3
Unlocked: 29 Aug 2014 20:06:24
Recruit
5Earn a star of any type
Unlocked: 29 Aug 2014 20:06:24
Prodigy
5Earn your first Gold star
Unlocked: 29 Aug 2014 20:06:24
117
20Earn all Gold stars
Unlocked: 29 Aug 2014 20:06:24
Pension Plan
10Earn 25000 XP throughout your career
Unlocked: 29 Aug 2014 20:06:24
Tour of Duty
10Earn all Gold stars in Operation F
Unlocked: 29 Aug 2014 20:06:24
Use every armor ability at least once (excluding Overshield and Seeker Drone)
Unlocked: 29 Aug 2014 20:02:17
Earn all medals in the game at least once
Unlocked: 29 Aug 2014 20:01:07
Score a kill with every handheld weapon (excluding Rocket Launcher and Spartan Laser)
Unlocked: 29 Aug 2014 20:01:00