United States Marine Corps Infantryman MOS 0311 Death Dealer T-Shirt. Digitally Printed on soft superior 100% ring-spun Cotton, Triblend, 50/50 premium Soft Style Quality T-shirts. Not Slim Fit Size XXL is Heavy Cotton.The job of Marine Corps Infantry Marines is to locate, close with and destroy enemy combatants. The design contains a hooded grim reaper with dog tags, crossed assault weapons including a rocket launcher "AT-4" MOS 0311 and the U.S. Flag.