Sledgehammer Games have decided that it’s time to give something back to the community of dedicated Call of Duty Gamers that have been playing the game throughout the week. In a blog post from the developer, it was revealed that players would be receiving an exclusive in game reward merely for playing the game.
No strings attatched other than you have to had played the game at some time from Wednesday, 11/26 at 12PM PDT to Monday, 12/1 at 9AM PDT. The “Nigerian Command Loadout” is just one of the many pieces of in game loot (which apparently numbers in excess of 1000 pieces) that are available to players via supply drops.
The Nigerian Command Loadout is also the only part of the Nigerian Command Set that is being given away for free with the rest needing to be acquired by using the aforementioned supply drops. This is all part of the added customisation that came to the game.
[Source]