DoS for Melee: degrees of success on melee attacks IN ADDITION TO the initial attack confirmation may be used to replace a low roll on one D10 roll for that attacks damage calculation. See example below
Added DoS rule from the forums for melee damage. The rule is simply that the lowest dice roll can be changed to a number equal to the DoS on the weapon skill roll to hit.
Example: Space marine rolls a 22 on a WS check to hit with his Power Fist. As the Space marine has 66 WS he has achieved a hit plus 4 degrees of success. The marine then rolls for damage and gets a 2 and a 3. While both rolls are poor, the marine can replace the 2 with a 4 as he succeeded so splendidly on his attack.