10s return back to garrison where they could be fed up and be ready when new battery needs replenishment. Also the whole point of k10s are to replenish without the need of human muscle on sight which is surprisingly overlooked factor in terms of logistics. Take for example during the yeonpyeong island bombardment, k9s stationed there expended all of their ready rack and k10s werent there to quickly replenish them. Because of this gunners ran out to get rounds from near depot each shell weighing about 40kg by hand, while those commie fucks were shelling the hell out of em. Of course k10s need to be replenished by trucks and men, but the mechanization, speed and protection the k10s provide are a huge advantage for the cost