A Warthog randomly lands outside Sweet Apple Acres.

Josh has been living the good life. He has a family, all the money he could ask for. But something is missing. He feels alone, the last of his kind in Equestria. The last human. But when a visitor from the stars arrives, all that will change. This soldier, this Spartan, will decide the fate of ponykind.

Friendship is Magic/HALO Crossover: Ten Years before the Battle of Reach, the Human-Covenant War rages out of control, with neither side holding the upper hand. When a Covenant Carrier crashes onto Equestria, the war comes with it as Covenant troops launch a full scale invasion of Equestria, forcing Ponykind into an uneasy alliance with the Covenant's sworn enemy: Humanity

After an accident, Master Chief is transported to Equestria. The transport causes severe events to occur, and the elements are spread across many worlds... NOTE: THERE WILL BE MORE CROSSOVERS THAN JUST HALO AND MLP.