The Caribou Stonehooves, led by King Dainn, have nearly conquered the whole of Equestria. They have already taken Canterlot, Manehattan, and countless other cities. Ponyville is all that remains. Twilight Sparkle, fearing for Equestria's existence, sends the Cutie Mark Crusaders through the Mirror Portal in order to protect them from the Caribou.
However, the CMC do not arrive in the world they expect. They arrive in Northern France, in the year 1944. As they escape from the Germans, they are rescued by the sole surviving scientist of the German Unendlich Program, and then the brave men of the US Army.
As the Cutie Mark Crusaders plea for help on Earth, Equestria suffers under the iron fist of Dainn. However, the Caribou do not know that Liberation is coming...and coming with a vegeance.
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A complete rework of Fall of Eqeustria: Liberators, this will have a slightly darker tone than the original, with less sci-fi presence and more realistic warfare in WWII terms. It will feature gore, swearing, and what you'd expect in a Fall of Equestria story. Also features characters from Call of Duty: World at War.