OK, 2 more cents, and perhaps after the Master class is Open Class which is run what ya got, anything goes and box stock is beginner and or novice class.

It is simulated battle and the surprise factor of the other guy showing up with a better weapon system should be part of mock tank fighting, one would think. Simple, tightly regulated OEM club class competition in motorsports is boring to watch, similar to watching 20 identical Porsches race each other, though good for the various competing teams if all cars are equal, but still boring. Hence a top level open class is recommended and that is the class (in sports) that usualy draws a large share of both expert level and spectator interest.

And like rc aircraft, a annual international rc tank event might be fun and interesting if it is not weighted down by over regulation and knucleheaded rules like the flash, bang & fire guys who want the tip of the Tamiya flash unit to extend past the barrel end like a kitty cat's tongue, in the name of a better night show.