I can't wait to be joining a charge of my assault marine brethren as we crash into the fray. And if assault terminators are designed well, they are a close second.
Tactical if they can take a powersword. Hopefully, my hope at least, they'll be able to after quite a bit of outstanding service to the Imperium. I want to be primarily a balanced guy who can do all, but can definitely hold his own in cc. If tacs can't get that, then assault.
I prefer to feel my enemies blood on my face so assault marine until librarian is available then I'll be smiting my foes with righteous warp energy.
I would like to play some very defensive Apothecary! I mean if i cant play Legion of the Damned, i will try to play the next possibile Thing near to it! So lets go for some Apothecary with Teleporter Device and revive everybody i can see
I'll be going for tactical marine, techmarine or chaplain (if available) depending on the situation. While devestators lay down the emperors fury and assault marines rip appart the scum of the galaxy in close combat, the tactical squads will break any counterattack and assail our foes with bolter, grenade and combatkife alike.
chaplain whenever i have enough to pay for that hero class though i will be using all classes, I will be using a lot of tech-marine as well... don't have a favorite from the three main ones though. they are going to be a hero class. similar to how a terminator will work, but even more limited.
The big question is how will special cases be worked in? For example, a Wolf Priest is both a Chaplain and an Apothecary for the Space Wolves.