Editing Coup-De-Grace: Rules of Conflict (section)

===Melee Attack Modifiers===
These modifiers apply only to ''melee attacks''. Note that ranged attacks at point blank range are NOT melee attacks, though they have their own set of problems close up!
* For each ally adjacent to and facing towards the same target, add a +1 to your attack roll. This is called a ''co-ordinated attack bonus''.
* If your opponent is facing directly away from you, gain +1 to your attack roll. This is called a ''backstab bonus''.
* For each opponent ''other than your target'' adjacent to and facing towards you, deduct 1 from your attack roll. This is called a ''distraction penalty''.
* Melee attacks against downed opponents gain +1 to the attack roll. This is called a ''melee coup de grace bonus''.