This makes little sense though..... Here's why:
When you shoot at a unit with any given weapon it is the unit that is hit, not the particular model/s. Once you determine the number of hits the unit suffers you roll to wound rolls. Once you have the number of wounds you then create wound pools based off of strength, AP, etc. The wounds from each respective pool is what is then allocated to individual models through LOS restrictions, look out sir, or taking the wound on the next closest model. So since the wound says hit, I think we would place it against the unit, since the unit is what is hit......