What range are you using? or What is the range? Extend the arms toward the person addressed, one hand open, palm to the front, resting on the other hand, fist closed.
Are You Ready?
Are you ready? or I am ready. Raise the hand, fingers extended and joined, palm toward the person addressed.
Commence Firing
Commence firing. Move the arm extended in full length, hand palm down, several times through a horizontal arc in front of the body.
Fire faster. Execute rapidly the signal, "Commence Firing."
Fire slower. Execute slowly the signal, "Commence Firing."