Why do you think a Sister is piloting the turret of my Razorback? The only plastic Sister in existence!
I miss the time Salamanders had 3 I and cheaper mastercrafted weapons.I miss where I could have two special weapons if I didn't take a Heavy Weapon (one of the Salamanders' actual doctrines). And the Sisters can still do that.
In fact, I miss being able to give mastercrafted weapons to my HQ choices.