jobo
Grandmaster
well quite capable against who, against you perhaps, but against someone of much greater fitness, perhaps not.To the first point, there's documented evidence that soldiers were (and still are, though to a lesser extent) actually reluctant to fire. One study I read (I think it referred to the Vietnam war) said a large number (far more than half) of the soldiers surveyed admitted (in anonymous interviews) to having purposely fired their guns in a harmless direction (well over the heads of enemies, for instance).
To the second point, a high level of fitness is not necessary to defend for 10-30 seconds, especially against someone who is less skilled. It certainly helps, but I know some guys in their late 50's, with a gut, whose skill/ability at sparring far surpasses my own. If we went hard, my more extensive grappling would be the only thing that might give me a chance. Would they be more capable if they were more fit? Probably. But they are quite capable without being more fit.
but then your point doesn't stack up. Being in yoir late 50s with a gut doesn't mean you don't have a very good standard of fitness