Alright, I've taken it upon myself to create The Thunder Knight's Organization.
Chapter Master Severus Grimnar, 2 Librarians, 4 Chaplains and 6 Techpriests. 6 Marines as Honour Guard to the Chapter Master.
As of yet, empty. Brothers deserving of the honour will be transferred here.
Command Squad, of 1 Company Captain, 1 Techmarine, 1 Chaplain and 5 marines. Assigned a Rhino.
5 ten man Tactical Squads. A rhino assigned to each.
2 Five man devastator Squads. A Razorback assigned to each.
3 Five man Assault Squads. Assigned to a Thunderhawk Transport.
5 Land Speeders, 1 Predator, 1 ThunderHawk Gunship and 1 Land Raider attached at company level.
Command Squad, of 1 Company Captain, 1 Techmarine, 1 Chaplain and 5 marines. Assigned a Rhino.
4 ten man Tactical Squads. A rhino assigned to each.
2 Five man devastator Squads. A Razorback assigned to each.
3 Five man Assault Squads. Assigned to a Thunderhawk Transport.
5 Land Speeders, 1 Predator, 1 ThunderHawk Gunship and 1 Land Raider attached at company level.
Command Squad, of 1 Company Captain, 1 Techmarine, 1 Chaplain and 5 marines. Assigned a Rhino.
4 ten man Tactical Squads. A rhino assigned to each.
2 Five man devastator Squads. A Razorback assigned to each.
3 Five man Assault Squads. Assigned to a Thunderhawk Transport.
5 Land Speeders, 1 Predator, 1 ThunderHawk Gunship and 1 Land Raider attached at company level.
Command Squad, of 1 Company Captain, 1 Techmarine, 1 Chaplain and 5 marines. Assigned a Rhino.
4 ten man Tactical Squads. A rhino assigned to each.
2 Five man devastator Squads. A Razorback assigned to each.
3 Five man Assault Squads. Assigned to a Thunderhawk Transport.
5 Land Speeders, 1 Predator, 1 ThunderHawk Gunship and 1 Land Raider attached at company level.
Command Squad, of 1 Company Captain, 1 Techmarine, 1 Chaplain and 5 marines. Assigned a Rhino.
6 Ten man Tactical Squads, assigned a Rhino each.
1 five man Tactical Squad, assigned a Razorback.
Command Squad, of 1 Company Captain, 1 Techmarine, 1 Chaplain and 5 marines.
52 Marines and the Command Squad in 30 Landspeeders.
Command Squad, of 1 Company Captain, 1 Techmarine, 1 Chaplain and 5 marines.
6 ten man Assault Squads, assigned 2 ThunderHawk Transports between them.
1 five man Assault Squad, with the command Squad, assigned a Thunderhawk transport.
Command Squad, of 1 Company Captain, 1 Techmarine, 1 Chaplain and 5 marines. Assigned a Rhino.
6 ten man Devastator Squads, assigned a rhino each.
1 five man Devastator Squad, assigned a Razorback.
Recruits go here. Currently empty.
15x Landspeeders
8x Thunderhawk Transports (Carries 30 Marines-3 Tactical Squads)
6x Thunderhawk Gunships
5x Rhino Transports (1 Tac Squad Capacity)
10 x Razorbacks (6 Marine Capacity)
6x Predators
1x Land Raiders
I have made a couple of assumptions. We already have crew for the vehicles/Ships for example. And I haven't distributed the Fleet at all.
I've followed the Codex Astartes as much as I could, remembering we don't have any warbikes, veterans, Dreadnoughts, (I assume only Grimnar's got Terminator Armour) and no apothecary's either(!)