I suggest , to remake the crossbow and bow line:

-put a generic skill of throwing , like throwing stone (level 0) use sling (20) then launch of throwing knife (30) after throwing simple javelin or primitive spear (40) throwing axe (60) and finish with heavy javelin.
-the skill above go directly to bow like primitive bow (level 0) bow (30) longbow(60)
then it will directly go on crossbow skil and finish with preparatio of war skill

Then there aren't no primitive club or primitive mace.
Last thing that the warrior ability to punch and kick would be at the base of all military skill.