I will do a tutorial and put it on my website. I will link to it from RCU, once I get it done. It is very simple. You end up with a toggle switch at the top of your radio. Move it forward and the cannon fires, move it back and the MG fires. My demo will be done to work with the BARC4. What you are basically doing is moving the 45 Degree firing position on the stick to a toggle that replicates moving the stick.

The reason I moved the firing position on the MG and cannon on the BARC4 is to allow a person to add servo elevation on that stick for independent control of the bbl. You need to add a servo controller to slow down the speed at which it moves as well.