T-Force, those that'd broken off from the Founders during the early stages of the war, helped form the Resistance. A skirmish for an old AFB near Wichita turns sour for Lieutenant Church as he and his troops are forced to engage the Wireheads, only for the unexpected to drop into their lap:A new, friendly and highly-advanced human faction seeking to help rid the world of Legion.

Near the end of the war, the Covenant thought Humanity was finished. Little do they know, is that they will soon meet their worst nightmare: a remorseless, emotionless and utterly relentless machine. It's goals: protect Humanity, and terminate the Covenant.

Sometimes the brightest hope comes from the darkest despair.