Officer On Deck

From Halopedia, the Halo wiki

Officer On Deck

Officer On Deck is an Achievement in Halo Wars that is unlocked when the player is promoted to the rank of Lieutenant on Xbox LIVE.

It is worth 30 Gamerscore[1]


You will need to earn a total of 15,000 points altogether in matchmaking to become a Lieutenant [2]

You can view your Service Record to see the remaining amount of points required.