Marshall

2 Bugs are Better Than 1

Win a Skirmish Game with Dual Scarabs

Halo Academic

Unlock 20 Timeline Events

Officer on Deck

Obtain the Lieutenant Rank on Xbox LIVE

Walk-Off Winner

Use one of the 6 Major Leader Powers to destroy an enemy's last unit

So Lonely at the Top

Win and have the Highest Score in a Matchmade Skirmish Game on Xbox LIVE

Empire Builder

Win a game in every Skirmish Game Mode

N00b n0 M0r3

Win a Matchmade Skirmish Game on Xbox LIVE

The Real Winner

Mission 4: Save Adam

Secret Achievement

Covenant "Hot Drop"

Mission 3: Kill at least 5 Covenant Units with the Bridge

Momma's Boy

Get a Gold Medal on any mission

Backscratcher

Complete any Campaign Mission in Co-op Mode

Alas, Poor Andrew Thomas

Collect your first Skull

Basically Naive

Obtain the Recruit Rank on Xbox LIVE

Secret Achievement

Secret Achievement

Secret Achievement

Adjudicate the Arbiter

Complete the Campaign on Heroic Difficulty

Detour the Great Journey

Complete the Campaign on Legendary Difficulty

Crushed Colors

Improve your Score in any Campaign Mission

Mr. Punctual

Finish all missions under Par Time on Heroic difficulty

Own Worst Enemy

Get a Gold Medal with all Debuff Skulls Active

Wall of Recognition

Get a Gold Medal on every Campaign Mission

Epic Grinder

Obtain a Lifetime Campaign Score over 1,000,000

Everything's Better with Bacon

Mission 1: Ram 50 Grunts with Warthogs

Endless Fun

Mission 2: Destroy every Methane Tank

He's Got The Jack

Mission 5: Jack 6 Covenant Vehicles

Rhino Hugger

Mission 6: Successfully protect every Rhino

Micro Manager

Mission 7: Do not destroy any Power Node

Ramblin' Man

Mission 8: Use Elephants to train 100 Infantry

Sweet Naptime

Mission 9: Put every Colony in Hibernation Mode at the same time

The Procrastinator

Mission 10: Disrupt all Tractor Beams

Battened Down the Hatches

Mission 11: Save all the Airlocks

Handy with Tools

Mission 12: Repair the Power Core in less than 4 minutes

Beaming with Pride

Mission 13: Destroy 25 units with the Scarab

Didn't Get To Second Base

Mission 14: Don't claim an extra base

Thinkin' about My Doorbell

Mission 15: Open the Doors in order

OMG BFF FTW

Complete entire Campaign in Co-op Mode

Playin' the Field

Win a Skirmish Game with every Leader

Gallivant around the Galaxy

Win a game on every Skirmish Map

Titan

Get 20,000 points in any Skirmish Game

Big Al's Scooter

Win a Heroic Skirmish Game against the AI in under 10 minutes

My Virtual Friends Love Me

Win a 3v3 Skirmish game with 2 AI Allies

Penny Pincher

Get a winning High Score with 10 or less Squads against the Heroic AI

Running the Show

Obtain the General Rank on Xbox LIVE

Graverobber

Collect all Skulls

Halo Historian

Unlock All Timeline Events

Ready for the Sequel

100% Completion

24 Hours of Quality

Play Halo Wars for at least 24 Total Hours

One and Done

Score the winning point in a game of Keepaway against Legendary AIs.

Pull Hard, Pull Deep

Win and never trail in a Tug of War game.

Freak on a Streak

Gain at least 15 population from a single wave in a Reinforcement game.

Living Loving Bug

Get a Scarab during a Reinforcement game.

Tour Coming Through

Hot drop 50 squads to your Covenant Leader in a single game on Barrens.

Never Leave a Man Behind

Finish with 5000 net resources tributed to your teammates on Memorial Basin except in Deathmatch.

Drain Cleaner

Kill 20 enemy squads with a continuous Covenant Leader Power on Memorial Basin.

Killjoy

Disrupt 5 active Leader Powers in a single game on Blood River.

Secret Achievement