controls

Yaw and trim for the Turret
Pitch for forwards
Roll for turning
Look-aim for mounted MG

crew

commander
gunner
loader
driver
radio operator/bow machine-gunner

history

During the east Africa campaign a number of panzer IV were Captured by the kingdom of five island These tank received a number of modifications such as a change in of the engine cannon co-axial machine gun and a mounting of a roof mounted MG-21
These tank were manly use for reserve units but some did see combat lead to a German made vs German made tank battle

Details

Armament
1x 90.MM Tak-21 AT-gun
No.captured 102
Max range 199 miles
Max speed 40k/ph
Max amor 3.1 inch
Min amor 0.39 inch

notes
Credit to AliceShimada for building the tank in the Frist place
link to tank here
And this takes place in a fictional universe I have made