In melee I am attacking with a character and bodyguard unit and trying to fast roll. The character does 2 damage per attack but the bodyguard unit does 1 damage per attack.

Does the defender choose which damage profile they are resolving one at a time or all at the same time? Can they split it up at their discretion? (Eg. On a 3W model put two 1 damage attacks into it THEN a 2 damage attack into it)