I'm sure that Sergeant Sanderson (the other more known
D-Boy) was based on Sergeant Howe from the book.
During combat Howe complained that these new green tiped (Armour Piercing) rounds were crap, that they went right through the somalis, he shot one 5 times and still not dead.
In the BHD DVD it shows an deleted scene at the base where Sanderson is looking at his new M68 Aimpoint scope, and starts loading his magazines with the green tiped rounds, Hoot tells him that
"The Somalis don't wear armour. Those rounds would go right through them, I don't know about you but I don't want to hit a guy 6 times and worry if he's still out there in the woods waiting for me"
Sanderson gives him a grin, and carries on loading his mag.