'Exposure' part 1-Spartans Ray and Thorne set out on a secret mission to uncover the origin of a monstrous new bioweapon . . . but is it too late to prevent total catastrophe? Halo lead writer Brian Reed (Amazing Spider-Man, Ms. Marvel), Duffy Boudreau (BlackAcre), and Ricardo Sánchez (Green Arrow) team up to present one of the most dangerous Spartan ops yet!