Big Al's Scooter

Big Al's Scooter is an achievement in Halo Wars that is unlocked when you beat the A.I. in under 10 minutes in a Heroic Skirmish Game.

Methods
1. Enter a 2x2 Multiplayer game with a friend on the same team. Set the other team with 2 AIs on Heroic or Legendary; it doesn't matter which. When the game starts, have your friend escape to the Xbox Dashboard. The game will automatically end, declaring you the winner and unlocking the achivement.