Headscratchers / Crossout

• Both the Avenger and the Little Boy are 57mm Cannons that fire High-Explosive shells. HOWEVER, experience in the Soviet Red Army with the ZiS-2 Anti-Tank Gun showed that the small weight of its shell meant that it could not fire an adequate high-explosive round for general use (anti-infantry & anti-building). So why are 57mm cannons being used if they're inadequate for firing anything else besides Armor-Piercing Ammunition?
  • Because you're fighting trucks?
  • Could also be a case of Scavenger World, survivors are strapping on whatever weapons they can get their hands on. Also, in-game those cannons do not seem to be using AP shells, as certain other cannons have a specified perk of being armor-piercing, such as the 88mm Executioner, whilst other cannons seem to be shooting explosive shells instead.