The US Marine Corps is embarking on a comprehensive three-year study of marksmanship, aiming to address gaps in training and performance. The study, conducted by the Naval Health Research Center with funding from the Office of Naval Research, involves sophisticated marksmanship simulators and advanced small arms lethality trainers (ASALTs). Eight ASALTs, also known as Gunfighter Gyms, will be installed at major Marine Corps bases, offering a range of complex training scenarios and data collection capabilities. The study seeks to enhance Marines’ shooting proficiency, especially in areas like shooting at night, hitting moving targets, and leading targets, through improved training methodologies and data analytics.