They came out of no where. No one knew what they were, but almost immideatly, they attacked the UNSC Fleet that was based there. It was a one sided battle. The UNSC fleet was torn to pieces and the Enemy started landing troops on the planet of Harvest...
"Go,go, go"Yelled Lt. James S. Fin of the UNSC Marines. All around him were dead and wounded soldiers, but the remaining troops kept on fighting. In front of him were a squad of what the marines were calling grunts. These grunts were small aliens and are sometimes used as kamikize soldiers. But the grunts in front of them had needlers. "Pull back!" yelled Captain Inisstita. The marines slowly pulled back, into a deep forest, back to their camp. "We must get word to UNSC Headquarters about this threat!" yelled Lt. Ben.
"The enemy has been jamming our transmissions sir!" yelled a young soldier, a private. "Battle stations! the enemy is heading our way. Remember, we are the last defense on this planet. The enemy has destroyed all other defenses! Remeber, If we lose, we will lose Harvest! Snipers in position. Grunts in two hundred meters, Open fire!" The Marines guns blasted, slicing through the grunts. Grunt after Grunt went down, but more took it's place. Finally, the Captain realized that the battle was all ready over. "To the Pelicans, we must escape."
But as the pelicans escaped, the Alien ships in the atmosphere opened fired. Only one pelican escaped, the Captains. The Captain watched as the Aliens gassed Harvest. By know, the surviving marines, about thirteen of them, were calling the Aliens the Coverent. The captain turned the pelican away from the planet, and jumped into lightspeed toward Earth...