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