#692 Remove anachronistic items like the Thompson gun and alien elements

This suggestion has been split into multiple separate requests. Each split focuses on a specific aspect of the original idea to ensure better tracking and implementation.

Remove anachronistic items like the Thompson gun and alien elements

Suggested by

naplescommander_22747

Split

ContentItemsEquipment

Deleting the Thompson and the alien stuff
It doesn't fit the game like what does a gun.made in 1950 has tò do with 1899?
It's like using a sword in the modern word