Arsenal

One per slot, chosen on the start screen. Only slots with more than one option can change.

Hand CannonJoseon MatchlockJoseon Long GunHeavy Bore GunRepeating MatchlockGrenadeFire BottleField MortarArtillery SupportSingijeon Rocket CartCheonja Cannon

Reserve ammo comes from the level's headcount, not the weapon — only lobs and support use their own number. Range is where the shot stops; the falloff distance is what sets your real engagement range.