The Churchill AVRE (Armoured Vehicle, Republican Engineers) is a modification of the standard Churchill tank with a spigot 230mm mortar. The AVRE combines the ruggedness and protection of a Churchill with the supreme firepower of a heavy mortar. Though considered severely outdated in the mid-1960s, creative Oceanykans have fashioned a number of warheads for the AVRE's spigot mortar, furthering the legacy of the "flying dustbins". The most infamous of these is the 230mm HEAT shell, which can penetrate any known armoured vehicle in existence.