Mark Checkman (Earth-5875)

"We lost Checkman in the atmosphere. And we almost lost you too..."

- - Taylor "Dutch" Miles to Blake O'Brien

Mark Checkman was a member of the UNSC Marine Corps and an Orbital Drop Shock Trooper, assigned to a team under Master Sergeant Kalob Cortez aboard the Diligence-class destroyer UNSC Kronstadt.

Biography
After being tasked to assassinate a high-ranking san'shyuum politician on the Covenant colony Heian under Operation GREY VEIL, Checkman was disgruntled as soon as he discovered his team was assigned to be led by the SPARTAN-II Cal-141. During the ODSTs drop to Heian, Checkman's SOEIV collided with an asteroid and entered the planet's atmosphere sideways, leading to his death.