At this year's Game Awards, Epic Games announced Halo's Master Chief would be coming to its battle royale Fortnite.
To celebrate this special occasion, the Xbox team sent the world's most popular Fortnite streamer Ninja a life-sized Gravity Hammer from the Halo series. In Fortnite, Master Chief wields the Gravity Hammer as a Pickaxe.
Microsoft is also offering US fans the chance to win one of these hammers. All you have to do is follow the Xbox Twitter account and Ninja, and retweet the above post with the hashtag #GravityHammer Sweepstakes before January 4th.
Have you played as Master Chief in Fortnite yet? Leave a comment down below.