Stroke: a stroke occurs when there is a blocked (embolism) or ruptured (aneurysm/hemorrhage) blood vessel that supplies the brain, leading to severe and permanent damage to the tissues of the brain. A very severe stroke can cause brain death.
MCT: Marine Combat Training. All non-infantry Marines, upon completion of recruit training, will undergo Marine Combat Training (MCT). MCT consists of 29 days of battle skills training that enables Marines, regardless of MOS, to operate in a combat environment.
Marine Scout Snipers are infantry which have been given special training to be skilled in long-range marksmanship from concealed locations, as well as close in observation. Like Recon Marines, their primary mission is to conduct reconnaissance and surveillance operations in order to gain intelligence on the enemy and the terrain.