Who canceled the project for the Landkreuzer P. 1000 Ratte, which would have surpassed the Panzer VIII Maus as being the heaviest fully enclosed armoured fighting vehicle ever built?
Panzer VIII Maus Panzerkampfwagen VIII Maus ("Mouse") was a German World War II super-heavy tank completed in late 1944. It is the heaviest fully enclosed armoured fighting vehicle ever built. Five were ordered, but only two hulls and one turret were completed before the testing grounds were captured by the advancing Soviet forces.
Panzer ace "Panzer ace" ("tank ace") is a contemporary term used in English-speaking popular culture to describe highly-decorated German tank ("Panzer") commanders and crews during World War II. While not prevalent in World War II within the Wehrmacht, it was at times used by the Waffen-SS to publicise its most successful personnel, as the SS organisation was far more attuned to the propaganda imperatives of Nazi Germany. These commanders were credited with the destruction of large numbers of tanks and other armoured vehicles. The British and United States militaries did not recognise any of their tank commanders for "tank kills" or publicise their achievements, though some were also responsible for destroying a large number of enemy tanks.