21.75%
Halo Academic
Unlocked 20 Timeline Events
22.21%
Endless Fun
Mission 2: Destroyed every Methane Tank
22.97%
Sweet Naptime
Mission 9: Put every Colony in Hibernation Mode at the same time
24.50%
Battened Down the Hatches
Mission 11: Saved all the Airlocks
25.11%
Backscratcher
Completed any Campaign Mission in Co-op Mode
25.73%
N00b n0 M0r3
Won a Matchmade Skirmish Game on Xbox LIVE
25.88%
2 Bugs are Better Than 1
Won a Skirmish Game with Dual Scarabs
26.65%
Thinkin' about My Doorbell
Mission 15: Opened the Doors in order
28.33%
Empire Builder
Won a game in every Skirmish Game Mode
30.17%
Walk-Off Winner
Used one of the 6 Major Leader Powers to destroy an enemy's last unit
30.32%
My Virtual Friends Love Me
Won a 3v3 Skirmish game with 2 AI Allies
31.55%
Beaming with Pride
Mission 13: Destroyed 25 units with the Scarab