From the Model Rectifier Company’s website,

The Soviet Army T-80BV is a main battle tank that entered service in 1985, notable as the first production version of the T-80 family to feature factory-fitted Kontakt-1 explosive reactive armor (ERA).

It combined a high-speed gas turbine engine with a heavily reinforced armor package, making it one of the most elite, high-performance armored vehicles fielded by the Soviet Union during the final years of the Cold War.

• -Equipped with a 2A46M-1 main gun and a 12.7mm 6P17
• -Semi-connecting tracks included

While interesting, the details of this tank are lacking, so I reference the US Army CTC OE Data Integration Network website,

The Dornier Do 335 Pfeil (Arrow) was a heavy fighter built in later World War II. It was a unique twin engine design with its push-pull configuration and the lower aerodynamic drag of the in-line alignment of the two engines, and it was considered one of the fastest piston-engined aircraft ever flown.

Sources differ, but only 37 to 48 Do 335s were built and none were known to have flown in combat. The Do 335B-2 was to be a heavily armed Zerstorer (destroyer) with its main feature being two wing mounted 30 mm Mk 103 cannons contained in special fairings with 70 rounds per gun in addition to the normal engine mounted Mk 103 and two 20 mm MG 151/20s in the nose cowl. Due to the increased weight, the B series also standardized on larger tires which required the nose wheel to rotate 45^o for stowage during retraction, and an armored windscreen. Less than five Do 335B-2s were in production at the end of the war.