I would love to see bows. Large variety of possibilities.. The easy way to make them work would be to have them work just like guns - you shoot, arrows go straight, hit target immeadiately. Or, could aim crosshair at target, the bow autoshoots up at an angle and it travels in trajectory and hits target (some delay should be added, maybe 0.1 sec, or up to 0.3 or more, since arrows dont fly as fast as bullets), and different bows could shoot at different strengths/speeds. Bows could have different ranges. Arrows can have different damage, and just like bullets, they could start with standard arrows - penetration damage. and then if you modify the arrowhead, you could add the 50/50 of pen/acid, pen/burn, pen/cold, pen/frag, even pen/cut, or pen/cut/impact. would be awesome to have arrowheads that explode. crossbows, that have higher damage, less arc (shoot straighter), but short range.
for hand to hand type combat, it could depend on strength, and that would be pretty cool too. If someone spent a lot of time in this "proffesion" they could then hunt for free, and everyone likes that :-)
all for these ideas
Allfather