Please forgive the noobness but this happened earlier in the year at a tourney and it just occurred to me I may have fair better.
Paladin unit with one of those characters that have those fancy psycho something grenades multi charges 3 of my hunters. Basically charged in one long line would have easily been about 18 inches across. Used that nade and rolled for it's effects on each squad. Needless to say I copped everything from 1 attack, to 1 initive etc... And got annihilated.
Can that character roll for every enemy his squad has charged or should he only roll for the squad he's in combat with?
Also he told me I couldn't roll my counterattack because the attacks at 1 effect overrides it.