You approach to 30 yards distance. You can fire 2 shots at near range at a huge target (There ar so many orcs that as a mob they make a huge target). Choose your weapon. Make a L2-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:
Make a L1-SR on speed to return safely.
If you fail, this person is dead. The others enter melee.