You approach to 50 yards distance. You can fire 3 shots at near-far range at a huge target (There ar so many orcs that as a mob they make a huge target). Choose your weapon. Make a L3-SR on Dex. Note that any skill levels may be taken into account when making the SR.

If you make the hit, subtract damage from the orcs con.

To return:
You return safely. The entire group enters melee.