Tank Riders

[tlangston28]

I am preparing to play a Workers and Peasants scenario and was looking at my force mix and noticed that I can have tank riders (Yes I have not played with Tank Riders yet). My assumption is that Tank Riders and the tank itself count as 1 unit so I could have 3 tanks, carrying 1 SMG each and a leader (on one of the tanks) in the same hex and that would satisfy the 3 unit limit in a hex. It doesn't explicitly say this in the scenario rules and when I look in the 4th edition, it does say that tank riders suffer all the limitations and penalties of 5.6 and 5.65.

5.6 states, among other things, that "... Once loaded, the transport unit and everything it carries count as one unit for stacking, movement and combat purposes....".

Not that it is a great idea to stack that way but I was just looking for clarification.

With this in mind, am I assuming correctly?