The infamous 38 cm Sturmmörser, better known as the Sturmtiger, had its genesis in from the Battle of Stalingrad where a heavy support vehicle with a large armament capable of demolishing building was desired. While the similar Brummbär was also produced to fulfill this role, the improving trend of infantry-portable anti-tank firepower gave concern that the Brummbär's armour would not be sufficient, and so a vehicle with more armour was desired. As a result, several Tiger I hulls were assigned to be converted by Alkett into an assault gun holding the impressive 380 mm rocket launcher. The vehicle would begin limited production in February 1944 before entering full production in April, leading to 18 vehicles being converted into the Sturmtiger. The Sturmtiger was used most famously in the Warsaw Uprising in 1944, but also saw use against the Western Front in the Ardennes Offensive as well as the Battle of Remagen.

Introduced in the "Dreams come true" 10th Anniversary event during Update "Fire and Ice", the 38 cm Sturmmörser was arguably the one of the most anticipated vehicle in the game, as hinted by the title of the event it became available to unlock in. The Sturmtiger fits all the preconception of a vehicle of its kind, a large armament that wit an exorbitantly long reload time and is inaccurate enough to make precise hits improbable. However, the large calibre and blast radius ensures that anything caught in the rocket's reach will be crippled or destroyed. The Sturmtiger brings considerable armour into the battle as well, allowing for some semblance of survivability while lining up the armament onto the target. Due to its specialized construction and armament as an assault gun, finding the optimal way to use it in a dynamic battlefield could be difficult and frustrating, but players would have a literal blast being able to pelt that pesky tank with a 380 mm rocket to the hull.