Quote Originally Posted by ccrraazzyyman View Post
The special rules have to share. If they didn't, you're not doing the combining fire correctly.
Let's say I have 3 units of fire warriors with a pen chip commander attached and have selected monster hunter for that turn and I chose to combine fire. First step of shooting is to select a target. When I do this, combine fire kicks in and I select the other two units of fire warriors to join the attack. I then select a weapon to fire, the pulse rifle. I then resolve the shots simultaneously. The weapon profiles have no difference, so I cannot shoot the fire warriors with monster hunter separate from the ones without. The 'conservative' way breaks here, as how do I select which dice belong to the monster hunter unit and which don't? The answer is easy. All the shots have the monster hunter rule.
Why wouldn't you declare which dice are and are not? Maybe this is completely unrelated, but I think of the case of the signum in devastator squads. One model is +1BS, but fires at the same time. You declare which die will be BS5 versus the rest at BS4.