Well.. you can actually have 11 other tanks in your command
12 if you count the one you're sitting in
what you have to do ... is make a 12 man group with you in command...
then make two more 12 men groups as well....
then make 12 tanks.. and name all of them (t1-t11)
in the group with you in command place this in every units init field:
this moveincommander
tankname in the other groups place
this moveindriver
tankname and
this moveingunner
tankname Now you will be in command of all the tank commanders, and they will automatically give orders to the crew members in their tank...
I know this used to work back in the day.... ;D
so one of the new patches might have screwed it all up somehow
anyways.. have fun playing around with creatively stretching that 12 man rule ;D