All im saying is that stories like this get exaggerated vastly over time. The guy clearly performed a badass heroic act, losing his arm in the process. But im sorry i do not believe the story just told...a small asian man getting shot 7 times probably by a rifle much less a gutshot by mounted machine gun(he would be dead or at least completely incapacitated many times over already) at close range,THEN pulling out a grenade, getting his arm blown off(funny how the fire directed at his was powerful enough to blow off his arm, yet he previously recieved several other hits from the same thing and was still going full force
) then, still alive and thinking sharply after all this, reaches down and pries the grenade from his severed hand, throws it accurately somehow with his offhand which then of course blows up when it hits the bad guy, THEN grabs a tommy gun (a very difficult to control and shoot accurately full auto .45) with only his off hand and is able to fire it accurately enough to mow down the last of the opposition...i mean come on..even the worst 80s action movie is more realistic than that