http://www.1999.co.jp/eng/10144533
The kit seems to be the older (+10 years) kit, while the figures look like fighters/soldiers.
In my opinion, a real crew for this vehicle possibly would be better.

But perhaps one can use tanker-crews for this vehicle.
How big is the difference between them?
(ZSU-crew vs T- tank crew)
Also it would be interesting, if Dragon would add some metal-parts... gun-barrels and PE-parts.
greetings...
Soeren