Gethsemani said:
So, let me help you envision the average battlefield in Sweden: A pine forest with a few rocks and shallow depressions scattered about with the occasional larger rock. Mostly flat ground and fairly dense forest. Since a 5.56 NATO round passes straight through even a tree three times as thick as a man, those trees are not going to offer much cover. So basically, you are in an enviroment without much cover unless you have time to prepare and dig in but with quite a fair degree of concealment.
Now imagine a situation where you encounter the enemy in this forest (either because you were combat patrolling, ambushed them or whatever): going for cover as you fall back is not feasible simply because there isn't enough cover to be had for 8 men. Hence, you leapfrog backwards and try to put as much lead between yourself and the enemy as possible. In this situation it is vital that you keep firing and thus reload while relocating.
There's a whole other different set of skills required for combat in urban enviroment, where cover is far more important. But in your average forest engagement in northern Europe you won't have enough cover to stay in it indefinately and certainly not for any prolonged amount of time while on the move. In those cases your own firepower has to be your cover as per Dupuy's idea of diminishing returns.
EDIT: As for how we are supposed to open fire, it should always be against a target or a position where an enemy could potentially be taking cover or hiding. Always aim even if only in the general direction and never fire from the hip. And as far as I can recall our FNC's never had any problem with being reloaded hastily, at most you had to give it a good slap and cock it again if it hadn't been inserted properly at which point you could continue firing without problem. I had it happen to me twice due to a faulty magasine but after I changed it it never happened again.
Just because a bullet will go through a tree doesn't mean the tree isn't providing cover. It will still deflect the path of the round, and even if it does still hit you the tree will have absorbed a significant percentage of the force, flattened the round and set the round to tumbling prematurely, all of which means it will be significantly less likely to seriously wound or kill you. I still wouldn't
want to be hit with it, but given the choice I'd rather be behind a tree. Even ignoring all that the tree will still provide, as you noted, quite a bit of concealment, which, while not as good as cover, is still a whole hell of a lot better than nothing.
A lot of the terrain in the United States is very similar to what you described, and American soldiers are trained to fight in it. Honestly though, that post sounded a lot more similar to what we were taught. More emphasis on mobility and less on minimizing exposed time, which is dangerously close to a rout when disengaging, but otherwise pretty similar. I still don't buy the idea that trying to run and reload at the same time is worth the distraction, especially since we didn't ever run, we only sprinted, and jams that only take a second or two to clear still leave you vulnerable when you should be the one covering someone else, but I'll stop being a dick about it now. Sorry about that, didn't realize how much I was doing that until just now.