One of several anti-aircraft vehicles to utilise the reliable and ubiquitous Pz IV chassis; the Wirbelwind (Whirlwind) mounted a quad-barreled Flakvierling 38 on an open-topped turret.Around 100 Wirbelwinds were produced in the latter half of 1944; fulfilling the German requirement for a self-propelled; multi-barrel flak gun capable of engaging targets under 2;000 metres. They became known by their crews as the Keksdode (biscuit tin) due to the unique shape of the turret.Capable of a punishing 800 rounds per minute in combat the 2cm guns were relatively ineffective against aircraft but devastating against ground targets such as infantry; soft-skinned or lightly-armoured vehicles.Contains one resin & metal Flakpanzer IV self-propelled anti-aircraft vehicle; Bolt Action stat card; vehicle damage markers; full-colour decal sheet and Bolt Action Order dice.