Critical Head Table

 

If fighting hand to hand and not using a weapon then any roll of 98 or higher is instant death instead.
01-50 The blow to his skull knocks him down and stuns him for D6 rounds. Roll save vs Stun to see if he drops anything he was holding. 
51-75 The blow breaks his jaw and knocks out D10 teeth. Whether the teeth can be reattached depends on the technology level of the campaign.
76-87 The blow cuts off 1 ear. If not treated within opponent's PE x1 round it will turn gangrene. Whether the ear can be reattached depends on the technology level of the campaign.
88-93 The blow destroys 1 eye. If not treated within opponent's PE x1 round it will turn gangrene. Combat and skill rolls are halved until he can learn to compensate for his loss of sight.
94-97 The blow forces his jawbone into the lower part of his brain causing death in d6 rounds.
98-99 The blow decapitates him. Roll to see if his head hits anyone causing a stun.
00 Roll on the Catastrophic Hit  table.

 

Critical Tables Arm Leg
Chest Groin