Neither is correct.
Not last but at Initiative 1, pretty much the same thing but ya never know..............Severian said:rules state that models in cover strike @ initiative 10 and that frags bring your initiative up to strike at the same time. You cannot go above initiative 10 ferocious charge or not :?
Somebody is trying to pull a fast one here.
Powerfist always strike last no matter what (for infantry). The rulebook is very clear about this, no initiative bonus for the fist only the 1 extra strength after base strength has been doubled (usually 9 then)