I disagree and think the combat shield on the epistolary is great. The bike only gives a 2+ invul to shooting and only when you turbo boost.
However, terminator armor is in my opinion almost always a better buy for the epistolary (terminator honors and a 2+/5+ and the ability to take an always-deepstriking command squad for so few points os lovely).
I think your epistolaries are way too damn expensive buddy
A squad of missile launcher scouts is always a worse choice than
tac squads with
plas/las.
A squad of
tac without a plasma is a poor life decision. It's just too good not to take.
I would take 2 destructors and give the vindicator power of the machine spirit with the saving.
If you're going to take a venerable with tankhunter give him the missile launcher (I think it's a poor choice compared to the other cheaper dreads but hey). I do see the point of dreads in your list as it gives you a crapload of armor.
If your dread has a
CCW, he gets extra armor. always.
Yarr.