Can your inquisitor have both a the bolter cross bow and an eviserator, I think in our codex it still says only 1 two handed weapon. Also is the inquisitor walking around alone, I would say drop one IST and let him join that squad.
Also frag grenade on your HQ might be good since she will probably get into cc.
Also seems like you have your IST squad kitted out for elite infantry hunting. In that case I don't think the eviserator makes sense. It would probably be better to just leave the vet with the power weapon and move the eviserator to a SOB squad. Another option might be drop it and get each vet a meltabomb just in case you get stuck with dreadnoughts.
Other than that, good list.
Nice Sig picture by the way.
I used to roll the dice, Feel the fear in my enemy's eyes
I'm afraid there's no authoritative source for thinking you're an asshole