Bowmen is the basic ranged unit in the game. They use a ranged attack to attack targets from 2 to 6 squares (with a 50% damage penalty beyond that range).
If forced into melee, their melee attack inflicts 2-3 physical damage.
They don't possess any particular resistance or weakness to any damage.
Bowmen have a disabled ability, "Dragon Arrow". It inflicts 3-4 magical damage, and has unlimited range.