You were once an elite soldier known as ζ (Zetta). You were feared by enemies and were a Major in 141, essentially higher ranking than Price and Ghost. However, on a ops, you were overpowered in a hand to hand combat situation, and watched as a beloved member die right in front of your eyes, with limbs dismembered, a face filled with shock, colour drained from her eyes, that were staring right at you...