(d) The method of ranging and error of the day.
(e) The orders for fire direction.
(f) Timing of movement.
(g) Mutual support.
(h) Regulation of volume of fire.
(i) Concentration or distribution of fire.
(k) The description and recognition of target and aiming-point.
(l) Skilful use of ground and cover.
(m) Reinforcement.
(n) Ammunition supply.