Major Payne screams at Cadet Williams that "I am not your damned brother." Damon Wayans (Payne) is the uncle of Damien Dante Wayans (Williams).
To research his character, Damon Wayans endured several weeks of DI qualification training, learning the requirements of a Marine Corps Drill Instructor, as well as other aspects of Marine Corps training. Viewers can see several small things he does like the cadence of his walk, almost unconsciously correcting his cover after berating & getting in the face of each cadet, and the list goes on. A common sentiment among former DI's, not only in the Marines, but in all other branches, is their statement that one most be akin to an improvisational or stand-up comedian as a DI, since they constantly have to improvise on the spot, break down the cadets, come up with statements on the fly, and Wayans' prior experience as one was a huge asset.
Despite the campy portrayal of Major Payne, his uniform shows the Scuba Diving Badge and Parachutist Badge. In the US Marine Corps, this almost certainly means that Payne came from an elite Marine Reconnaissance or Force Reconnaissance unit which would certainly justify his war grizzled character. Until the recent formation of the Marine Raider Regiment (itself formed by former Force Recon operators), Marine Force Recon was considered the very tip of the spear when it comes to the Marines' combat fighting elite.
While it was originally a little seen straight-to-video release in Germany, it soon became a beloved cult classic over there, thanks to constant TV reruns.