Airsoft Grenade Head shot

First game of the day, Im following a team who have almost captured a base. Then a TLSFX TENNIS-BALL BYOTECHNICS BB GRENADE is thrown, this is made from bioplastic, it's far more solid than previous BB grenades I have seen and has a sharp edge around the middle. Rolled in use, this is not a problem, but thrown high, its gonna hurt if it hits someone as you will see