Sturgian Warrior Sons, and all of their upgraded units, have a high proficiency in bow (up to 220), despite not having one. They have a polearm though, as it is a cavalry line, and they start at 20 on this and end at 60, like other weapons they don't use. Plenty more of these kind of bugs this is just the one I happened to notice when it irked me enough to make a post about it.
