Killing the girl that could not be hit or injured
Keep on shooting her on the parts that are shown red keep on shooting it till she dies, if it doesn't work shoot her with the semi auto ammo on her chest were it shows red and shell die if you keep on shooting her.
P.S : If you ran out of semi auto's ammo use your shot gun or pistol
We have more cheats and tips for this game here, Resident Evil: Dead Aim cheats
Comments for this hint