Multi Melta for ranged.
Assault canon for terminator.
Lightning Claws for any close combat, excepting Chaplan - Crozius for him)
And also sniper rifle for scout.

1. 2H Thunder Hammer (Titus)
2. Lightning Claws
3. Storm Bolter / Halberd (GK)
4. Storm Shield / Power Sword
5. Everything else

For normal ranged: Bolter, or heavy bolter.
For normal melee: Bolter or plasma pistol and Chainsword/Powersword/Poweraxe, or lightning claws.

For Terminator ranged (in case we will have): Assault cannon.
For Terminator melee (in case we will have): Storm bolter + Power fist, or Lightning claws (in both case, Fenris or Wolfclaw pattern if possible).

1. duel lightning claws/jumppack
2. assault cannon
3. heavy flamer
4. multi-melta
5. the rest

My favorite weapons layout for my Space Marine - Grey Knights

Left arm:

Right arm:



Astrates Incoruptis!
Imperator Victa!
Grey Knights!

Guess why codex doesn't allow them to take storm shields
Because 2++ is too cheezy. No storm shields for you, IMBA-lovers!

My Kaldor Draigo does carry storm shield
and my GK Librarian
(Space Hulk Calistarius converted model) carries Warding Stave (+2 inv. close com.) + Storm Bolter.
The God Emperor wills it!

Duel Power Fist to punch the faces of my enemies in.

Allright. I'll answer it.
No.
2++
for you.
And yeah, Draigo's sword is not jsut "nemesis forcesword" for the same reason.

Always loved the chainsword.
But I'm a big Melta-fan as well