The ZSU-57-2 “Sparka” is a Soviet SPAAG (Self Propelled Anti Aircraft Gun). It featured 2 57mm clip-fed autocannons and no radar or IRST. It was manned by a crew of 6 (Driver, gunner, 2 loaders, commander and sight adjuster). It entered service in 1955 and is still in service with some nations (and armed insurgencies) in its original form today, the most notable users being Egypt, Cuba and Hezbollah. Over 2,000 were built in the USSR alone, with more built in North Korea and as a modified variant, the Type 80, in China.

The Ferdinand was the one of the first heavy tank destroyers produced by the Germans in any significant quantity, formed from Ferdinand Porsches overconfidence in the Tiger P. After the loss of the Tiger I contract, Ferdinand Porsche was left with 100 unusable chassis. In an effort to create a use for said chassis, the Ferdinand was born. With a heavily armoured superstructure and the formidable German 8,8 cm Pak 43/2 L/71, the Ferdinand was a fearsome opponent for any hostile tank that came across it. It utilised a generator to turn the engine’s power to electricity to power motors to turn the drive sprockets, making it a very early hybrid vehicle. This enabled it to reverse at the same speed as it could go foward.

During the Berlin Victory Parade, the IS-3 was first observed by the western allies. Among the British, fear grew about its armour and the fact that only the 17-pounder, firing the scarce APDS (Armour Piercing Discarding Sabot) stood a chance at penetrating it. As a result, a British program began to develop a gun capable of accomplishing the feat of penetrating the IS-3 frontally. When doubts arose about the planned vehicle, FV215, coming into service before cold war hostilities in sufficient numbers, a stopgap order was issued in 1950. This utilised the Centurion MK3 hull and mounted a 183mm anti-tank gun. This was named the FV4005.