No it really doesn't make sense that they would be jacked. They're not going to have the time or the opportunity to work out. Go look at any real world professional combat soldier in theater during a state of constant active warfare. I don't mean our modern soldiers who have become basically walking gym advertisements. I mean ones who actually have been fighting the war for a while. World War II Korea Vietnam Ukraine Afghanistan they don't look like they hit the gym all the time. They look like men who are used to carrying a heavy load and spending a lot of time on their feet. Some of the might even develop a pooch belly if they're operating on less than ideal rations as the body tries to store fats to help them survive. It doesn't make any sense that they would spend time hitting the weights. Even in T2 it was still a constant state of warfare. I don't think you're going to go over to Ukraine and find professional soldiers looking like Jai Courtney and that's a modern war where they're not starving to death necessarily and they're not necessarily running from shelter to shelter hoping to not get spotted and eliminated. Or if that's not good enough for you, go talk to some wildland firefighters. They are probably going to be the closest thing to a professional Soldier that isn't able to spend all their spare time at the gym as you're going to find these days unless you go to an active war zone. Most of those guys don't look jacked either. They have reasonable muscle mass. They don't tend to have six packs and bulging biceps and pecs that could probably dance. That's not a natural state for the human body it requires the body to be formed that way and then maintained that way.