First, LC counts as a power weapon right? I was taking the PF to battle against tanks and monsterous stuff. I don't mind losing the extra attack because Pedro will be there to give everyone a +1. I guess maybe I'm a little confused too. Sorry like I said I'm a bit new. You get +1 to attack with the pistol because it counts as an assault weapon right? and the PF does not?
Right to break it down:
Power weapon gives +1 attack when paired with a pistol.
Lightening claw is a power weapon that grants you re-rolls to wound, but does not get +1 attack when paired with a pistol.
Powerfist is a power weapon that doubles your strength, but does not get +1 attack when paired with a pistol.
Your sternguard Sarge has a Bolter and bolt pistol. The bolter has special ammo, so if you are giving your sarge a special
CCW then it is the pistol that goes. Thus no matter what weapon you give him you won't get the +1 attack for double armed as you will have given up your pistol. Thus you can either have a power weapon or a power weapon that re-rolls to wound for the same points with the same number of attacks. So you always go with the option to re-roll to wound. Obviously you could still go with the fist but this is more expensive but gives you other advantages (
ID, great against
MCs and tanks).