Well then your only real option if you really want a gun is someone from the revolutionary period of China, Japan, America, or France. With a musket like Davy Crockett, or Daniel Morgan. This is the archer class not the gunner class after all. There aren't too many others maybe Bonnie, and Clyde? There are ww 1, and 2 snipers but they're far recent and would get crushed by older servants. Strength comes primarily from how old the servants are so guys like Andrew Jackson while formidable would still be fighting people like Roland who fought armies, and blew up cliffs.