McCasky

Second Lieutenant McCasky was a commanding officer groundside during the Battle of Sigma Octanus IV on a scouting mission with his squad.

McCasky had underestimated the danger of the mission, assuming it was a "milk run", when he and most of his Marines were killed near their camp by a pair of Hunters.

Four members of his unit did survive though, Corporal Harland, Private Fincher, Private Walker, and Private Cochran, whom escaped in a Warthog.