Acid Splatter If a target is saved by its armour, splinters of glass and gobbets of mutagenic acid may rebound and hit others models within 2". Roll a dice for each model within 2" of the original target. Any models rolling a 6 are hit by acid splashes and automatically suffer I wound - this may be saved by armour in the normal manner.
A target which is not made of living flesh, such as a robot or vehicle, cannot be harmed by a Hellfire shell - any attempt to fire a Hellfire shell against a non-living target is treated like a normal heavy bolter shot.