alternative explanation: humanity started experimenting with launching metallic projectiles at other people pretty much since gunpowder was created, so long before we had(fucking sweats) and created guns before us in real life (fucking sweats). most of them were pretty shit and unreliable, bulky and straight up dangerous to the user though and not much work went into improving them because they were working on other stuff. like flying. guns really only started developing and improving pretty much when we in real life started going hard with it too, so i guess we still win. unless we from the 1100s were to fight humanity in the 1100s from the residents. then we'd lose. cus they have guns. and we had bows and swords or shit.