For the 20th anniversary of the series, get a shotgun and a weapon skin for the Halo: The Master Chief Collection.
You probably picked up the two backpacks and the handgun for the Halo: The Master Chief Collection last week and would like more?
Rejoice as the Halo 20th Anniversary free items continue.
You can now pick up the OGX Shotgun and the OGX SPNKR weapon skin for Halo 3 Multiplayer in-game.
By the way, the last present will be on January 5th. Then you get the Orion armor for the multiplayer of Halo 2: Anniversary Edition.