https://www.military.com/video/logistics-and-supplies/military-equipment/t-34-mig-21-epic-fire-extinguisher/3569572586001
Good lord, it’s not a T-72 with MiG-21 engines. It’s a T-34!! Hungarians built it.
In fact there are different vehicles based on that idea using different chassis.
Not very useful against wild fire.