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