What is the best way to run a m16 qualification range for battalion?

Talk to range control, seek advice from senior NCOs in the unit that have run ranges before. Ensure all that run the ranges have required training per that installations SOP.

I made range books which helped me visualize operations. See if there exists a range book and discuss range operations with senior NCOs who have done this. Then lie down on a couch and visualize the start to end of the range to include guidance from range control.

"Firers take up a good prone supported position". "Safety's raise the white paddles when you are ready". "Left side is ready". "Right side is ready". "Center is ready". "The firing line is now hot". Firers take one 30 round magazine and lock and load". "Safety' ensure the weapon is on NO PEW, raise your white paddle when you have checked to ensure weapons are on NO PEW". "Left side is ready". Right side is ready". Center is ready". "Firers, take up a good position". "Move your selector switch from NO PEW, to PEW". "Firers watch your lane".

Why is it that Carl always drops in and goes from NO PEW to PEW PEW PEW PEW before the safety can get over there and smack the dog shit out of him with the red side of the paddle?

All jokes aside, depending on where you will be shooting, you'll have to take a range safety class along with RSO, Range NCOIC/OIC, and a few others depending on what you are firing. I know AP Hill has those, and again with different ranges (to include MOUT), you'll have to take more. You should have a list of who's authorized from the Commander to run ranges, signed and delivered to where you'll be shooting. They can all take the classes once, and be good for a certain period of time, or until the list changes.