Gears of war alpha code 2

Anthony and Clayton Carmine form alpha squad as a new era of war begins. Twelve years after the disappearance of Marcus Fenix, alpha squad ventures North, they fall into a trap and are forced to fight locust enemies, trying to complete the mission without his squad dying, Anthony Carmine, the presumed dead rookie soldier, now commander, he starts to make a plan and it doesn't work resulting in many soldiers deaths.
7 years later Anthony and his brother Clayton reform alpha squad, when sent on another mission, they encounter General NAAK, the biggest and baddest locust leader around, following in general RAAM's footsteps, he and his army plan code 2, code 2 is their biggest plan to destroy alpha squad