After being released on the Xbox, Halo: Spartan Assault is now about to arrive on the Xbox 360 Game Store; tomorrow, January 31, we will be able to buy the stock at a price of 14.99 euros. The game has 30 missions, the expansion Operation Hydra and an online cooperative mode. If before 15 December you have the Windows version 8 or Windows Phone product 8, you can grab Halo: Spartan Assault for Xbox One at the modest sum of 4.99 euros.