I'd grab a combi bolter or another small weapon on the vindi's, that way you're better protected against weapon destroyed results (you have to pick which weapon randomly)
Deepstriking the lord and terminators... good luck with that, a lot of points for a suicide unit, sure you might pop something important but you have to try really really hard to kill off more points than the unit is worth, and keep in mind, you are likely to be deepstriking next to a lot of badass, rapidfiring shooty units, this is 6E
also that unit and the two helldrakes are all reserve, you may need a comms relay because you know some games those guys are not going to come in at all until it's two late.
the
CSM units are really pretty flimsy, there are plenty of ways to kill off marine squads and pop rhinos these days, you will have a hard time being offensive and taking objectives with that. Also you should at least give them
VOTLW to be Iron Warriors.
Taking marks is not anti-fluff for an Iron Warriors list. no reason they can't have marks but maybe cult troops are a stretch, not to me though it all goes... nurgle is generally a great approximator of the increased toughness that bionics might give
CSM's. With this 'dex the only 'easy button' is helldrakes.
General advice, I'd think about how the list works and whether you want a gunline or not; if you do want a strong firebase... and something fluffy... grab a bastion and stick a quad gun, and havocs with 4 autocannons inside!
