I've been thinking about putting together a squad of Ten Marines from each armor set (Mark 1 through 8) and I'm having trouble finding out which pattern bolter the Thunder Warriors would have been equiped with. The oldest one according to wh40k.lexicanum.com is the Phobos Pattern Bolter which was mass-produced on Mars for the Great Crusade, and is more closely associated with the Mark II power armor. This is post Unification wars however so I'm not quite sure what they used before this. This is from http://warhammer40k....under_Warriors:
"The Thunder Warriors were armed with an archaic, but large and powerful pattern of the standard Astartes Bolter."

I will most likely be using these models for the Base with added modifications as necessary:
