The Inner Colonies dwindle. Mankind's extinction draws nearer as its insuperable enemy scatters and defeats the UNSC with increasing momentum. Now, at the height of The Great War, Zaragosa's colonial defense forces are able to fend off the might of the Covenant and very few understand why. As Lima Company's enemies close in all around them, they are forced to uncover this mystery.

The further adventures of Bravo Company of the 139th ODST Battalion. This time, in humanity's darkest hour, they must stop the Covenant--at all costs. The prize: Earth. Rated T to M for language and violence.

SSgt. Ryan Haze injured in battle is transffered to a new planet, where a alien infestion of some sorts takes place, now him and survivors must take refugee in the pit, a marine training center. Multiplayer Chronicles.

COMPLETE. Fresh out of the hospital, Lt. Natalie Cooper returns to battle on planet Heath. When Cooper's unit is later transferred to Sigma Octanus IV for a break from the frontlines, the Covenant invasion begins.

The Battle of Harvest was the first real contact with the Covenant. Petty Officer Ashton Croft, a medic, is caught up in the middle of a war that's almost impossible to win. R & R please!