What's the noun for aiming? Here's the word you're looking for.
aim
The pointing of a weapon, as a gun, a dart, or an arrow, or object, in the line of direction with the object intended to be struck; the line of fire; the direction of anything, such as a spear, a blow, a discourse, a remark, towards a particular point or object, with a view to strike or affect it.
The point intended to be hit, or object intended to be attained or affected.
“After joining the RAF, he trained as a bomb aimer in Oxfords, Ansons and Wellingtons before joining a squadron of Lancasters.”
“Crews consisted of a pilot, flight engineer, bomb aimer, navigator, wireless operator, and front and rear gunners.”
“The aileron control of the aircraft was affected and the windscreen de-icing glycol tank burst, drenching Pilot Officer R. J. Hayhurst, the bomb aimer, and filling the forward part of the bomber with suffocating fumes.”