perhaps there can be 2 bows one simple wood bow for the low tier and a upgraded compound bow with scope for the higher teir. and using these bows with different perks gives it different effects like demo using the bow would have explosive tipped arrows
. sharpshooter would have arrows with more penetration. support would be able to fire arrows that burst into a small wave of multiple needles. the berserker would have wide razor sharp tipped arrows with metal thorns throughout the shaft which cut their targets and dismember more easily 'maybe cause a possible bleed effect?'. the medic would have arrows that poison their targets and heal allys the commando would be able to fire multiple arrows at once or fire them more rapidly. firebug arrows would have sticky tips that would burst into flames upon contact and continue to burn their targets for a short time.