Dave wrote:
I read somewhere on here that it was 9th company devastators. I've never seen that in an official source though.
Oddly, I have a recollection of the same thing, vaguely thinking it was from something in an old SM/epic book. As far as the 2e books go though, the following excerpts (pages 18, 30, 35, 36) seem to answer it:
Codex Ultramarines wrote:
In addition, the Marines of the 6th and 7th Companies can also act as crews for large, independent formation of the various armoured vehicles deployed by the Chapter. Thus the Chapter is able to field entire companies of Land Raiders or Predator battle tanks, for example.
Codex Ultramarines wrote:
All Space Marines are ablke to act as crew for the vehicles maintained in each Chapter's armoury. It is normally the Tactical squads qhich provide vehicle crews. When fighting in this role they replace their normal tactical markings with crew badges, but otherwise they retain their company colours and Chapter insignia as normal.
Codex Ultramarines, listed under the Razorback wrote:
Each Space Marine Chapter maintains a huge arsenal of special wargear which include variations on the basic Rhino and other armoured vehicles...The crews of these vehicles are drawn from the ranks of training and reserve units, and they bear special insignia in place of their usual tactical badges."
So, all marines can crew vehicles, but it appears the armour is manned by 6/7th Tacticals. Sorry Jimmster.
And more generally, some random details on company formation:
Each Company has it's own chaplain, apothecary, standard bearer and captain. Librarians and Techmarines are drawn from the Chapter's Librarius and Armoury respectively.
1 company is the Veteran company, coloured white, and it is the only company to maintain a permanent establishment of Land Raider transports.
2-5 are Battle companies, coloured yellow, red, green and black, the Assault squads of which may be deployed as Bike-mounted or Land Speeder crews.
6-7 are Tactical companies, coloured orange and purple, with the 6th trained and able to be deployed entirely as Bike squadrons and the 7th trained and able to fight as Land Speeder units. The 7th is specifically also trained to act as a light vehicle reserve formation.
8 company is an Assault company, coloured grey, often deployed with jump packs, or as Bike or Land Speeder units.
9 company is the Devastator company, coloured blue, and has no mention of anything besides being used to bolster defensive points or provide long-range support is made. It shows only Rhinos and Dreadnoughts in it's permanent strength.
10 company are the scouts, with no formal size for this formation. Interestingly, this company is listed as NOT maintaining a permanent Rhino transport capacity.
Mmmm, fluff.
