Even if i disagree with the first post, there is something wrong with the capping system : as you can cap without clicking DIRECTLY on the flag of the point ingame (just by clicking in the circle) the game should understand that as a capping action, not idle : if you shift other actions they'll stop capping the point cause they move as soon as you click your other shifted orders
This obviously has to be this way. If you want to shift-que, then shift-click the points themselves, not just some spot in the capping area.
I love the fact that there's a lazy way and a micro-intensive way that is more precise and more optimized. I've noticed that sometimes you can get the absolute best capping position (1 guy in the circle and the other members of the squad on their way to their next cap objective) only by using the halt command.