Sorry but I'll dare to disagree. I don't know what kind of idiot trains the soldiers to "stand" guard their hilltop posts besides a fluttering flag. I, as a civilian know that a person standing on a hill top stands out like a sore thumb and presents himself as an easy target for snipers, standing in hostile weather also tires the soldiers and drains their energy faster while carrying that heavy rifle, ammo and accessories.
Why can't they guard it while lying down (as in shooting position), dressed incamo, with bi or tri pod mounted long range precission rifles and heavy machine guns and aided bwith field bino's or spotting scopes?
Why do they have to be inside or beside their mud/stone build posts, which are an easy target for RPG?
Bravery does not mean stupidity. First priority should be protection of soldiers, only well protected soldiers are able to achieve assigned targets, which is protection of a post, position, building, asset, or whatever.
When positions are built up, there is an assessment done of the threat or the direction/s that the threat comes from. The troops figure out when there is activity by the other side and work around such things. Standing outside of a post, that too at a height means that the troops are confident that they are safe from the small arms range of the enemy. After all they are bringing in press so they know that the area in which they are operating is pacified to a certain extent. If such is not the case, they are close enough to their positions to take cover.
Secondly, sangars (made of rocks available in the terrain) provide adequate protection, although not 100% against a grenade projectile such as the RPG. You have to grant that these folks understand the threat level and do respond accordingly. You cannot be in a prone position when you have the height to your advantage and can observe better via your 360 line of sight. To an observer, these things may look basic, but those that are operating have a much better appreciation of the threat to their lives and react accordingly. There is nothing brave about this. As soon as a round is taken, these chaps will go behind cover. But hunkered down in an environment where the movement of the enemy during daytime is very limited probably does not make tactical sense to them.
Lastly, the experience being gained here is that of operating in a Low intensity conflict which is different from force on force type engagements. It is a good experience and in this day and age, armies need to have both types, specially if they are faced with both such threats.