2 Bugs are Better Than 1 (10) - Win a Skirmish Game with Dual Scarabs
24 Hours of Quality (20) - Play Halo Wars for at least 24 Total Hours
Adjudicate the Arbiter (30) - Complete the Campaign on Heroic Difficulty
Alas, Poor Andrew Thomas (5) - Collect your first Skull
Backscratcher (10) - Complete any Campaign Mission in Co-op Mode
Basically Naive (10) - Obtain the Recruit Rank on Xbox LIVE
Battened Down the Hatches (5) - Mission 11: Save all the Airlocks
Beaming with Pride (5) - Mission 13: Destroy 25 units with the Scarab
Big Al's Scooter (10) - Win a Heroic Skirmish Game against the AI in under 10 minutes
Covenant "Hot Drop" (5) - Mission 3: Kill at least 5 Covenant Units with the Bridge
Crushed Colors (10) - Improve your Score in any Campaign Mission
Detour the Great Journey (50) - Complete the Campaign on Legendary Difficulty
Didn't Get To Second Base (5) - Mission 14: Don't claim an extra base
Empire Builder (5) - Win a game in every Skirmish Game Mode
Endless Fun (5) - Mission 2: Destroy every Methane Tank
Epic Grinder (40) - Obtain a Lifetime Campaign Score over 1,000,000
Everything's Better with Bacon (5) - Mission 1: Ram 50 Grunts with Warthogs
Gallivant around the Galaxy (25) - Win a game on every Skirmish Map
Graverobber (30) - Collect all Skulls
Halo Academic (15) - Unlock 20 Timeline Events
Halo Historian (40) - Unlock All Timeline Events
Handy with Tools (5) - Mission 12: Repair the Power Core in less than 4 minutes
He's Got The Jack (5) - Mission 5: Jack 6 Covenant Vehicles
Ice Warriors (40) - Completed Act I on any difficulty
Key to Pirth (50) - Completed Act II on any difficulty
Meet Sergeant Forge (10) - Completed Mission 1 on any difficulty
Micro Manager (5) - Mission 7: Do not destroy any Power Node
Momma's Boy (5) - Get a Gold Medal on any mission
Mr. Punctual (15) - Finish all missions under Par Time on Heroic difficulty
My Virtual Friends Love Me (10) - Win a 3v3 Skirmish game with 2 AI Allies
N00b n0 M0r3 (10) - Win a Matchmade Skirmish Game on Xbox LIVE
No Way Home? (70) - Completed Act IV on any difficulty
Officer on Deck (30) - Obtain the Lieutenant Rank on Xbox LIVE
OMG BFF FTW (40) - Complete entire Campaign in Co-op Mode
Own Worst Enemy (20) - Get a Gold Medal with all Debuff Skulls Active
Penny Pincher (10) - Get a winning High Score with 10 or less Squads against the Heroic AI
Playin' the Field (15) - Win a Skirmish Game with every Leader
Ramblin' Man (5) - Mission 8: Use Elephants to train 100 Infantry
Ready for the Sequel (75) - 100% Completion
Rhino Hugger (5) - Mission 6: Successfully protect every Rhino
Running the Show (50) - Obtain the General Rank on Xbox LIVE
So Lonely at the Top (20) - Win and have the Highest Score in a Matchmade Skirmish Game on Xbox LIVE
Sweet Naptime (5) - Mission 9: Put every Colony in Hibernation Mode at the same time
The Procrastinator (5) - Mission 10: Disrupt all Tractor Beams
The Real Winner (5) - Mission 4: Save Adam
Thinkin' about My Doorbell (5) - Mission 15: Open the Doors in order
Titan (15) - Get 20,000 points in any Skirmish Game
Ugly is only Skin Deep (70) - Completed Act III on any difficulty
Walk-Off Winner (30) - Use one of the 6 Major Leader Powers to destroy an enemy's last unit
Wall of Recognition (30) - Get a Gold Medal on every Campaign Mission