Apollo-120

Spartans are the UNSC's strongest weapon, built to act without hesitation. Apollo-120 was built the same way, until he began to notice things he was ordered to never question. When his hesitation cost more than the UNSC was willing to forgive, they discard one of their greatest soldiers onto a small desert planet. But when the Covenant threatens galactic peace, the UNSC just might need Apollo back, exactly when he begins to find a greater purpose for himself.