[Rainbow Six]

Source for this material (with the exception of the TA) is The British Army in Germany (BAOR and after): An Organisational History 1947 - 2004 by Graham Watson and Richard Rinaldi. RAC, RA, and Infantry Regts / Bns assigned at any given time varied due to Arms Plotting.

1st (UK) Armoured Division, 1989 - 1992

1st Armoured Division HQ and Signal Regiment - Verden

1 x Armd Recce Regt - Wolfenbuttel (CVR(T))

3 x Royal Artillery Field Regts - Hohne x 2 (1 x M109, 1 x Abbot), Osnabruck x 1 (M109); Osnabruck Regt assigned to Close Support 12th Armd Bde, Hohne Abbot Regt assigned to 22nd Armd Bde, Hohne M109 Regt assigned to 7th Arm Bde

10th Air Defence Battery RA - Hohne (Blowpipe)

21 Engineer Regt, RE (1, 4, 7 Field Sqns and 45 Field Support Sqn) - Nienburg

1st Regt Army Air Corps (651, 652, 661 Sqns) - Hildesheim

1st Armd Dvn Transport Regt (2, 4, 33 Sqns and 74 HQ Sqn) - Bunde (merged into 1st Regt RLC after Options For Change)

1st Ordnance Bn, RAOC - Location unknown (merged into 1st Regt RLC after Options For Change) (Location may have been Verden)

1st Armoured Dvn REME (7 and 12 Workshops REME) - Location unknown (merged into 1st Bn REME after Options For Change) (7 Workshop may have been at Fallingbostel and 12 at Osnabruck)

1st Armoured Dvn RAMC - Location unknown (May have been Hohne)

7th Armoured Brigade (2 x Armd Regts (MBT), 1 x Infantry Bn (Warrior))

HQ and 207 Signal Sqn - Soltau
1 x Armd Regt - Soltau
1 x Armd Regt - Hohne
1 x Inf Bn - Fallingbostel

7 Armd Bde would also be reinforced by one light role TA Bn (4th Battalion, Royal Green Jackets)

12th Armoured Brigade (1 x Armd Regt (MBT), 2 x Infantry Bn (Warrior))

HQ and 212 Signal Sqn - Osnabruck
1 x Armd Regt - Osnabruck
1 x Inf Bn - Osnabruck
1 x Inf Bn - Osnabruck

22nd Armoured Brigade (2 x Armd Regt (MBT), 2 x Infantry Bn (Warrior)

HQ and 201 Signal Sqn - Hohne
1 x Armd Regt - Hohne
1 x Armd Regt - Hohne
1 x Inf Bn - Fallingbostel
1 x Inf Bn - Celle

Several sources also state that the three TA Para Bns (4, 10, and 15 Para) would be assigned to 1st Armoured Dvn as Division Troops.

As best as I can tell the basic structure remained relatively unchanged until the end of 1992, when Options for Change caused major restructuring

Hope this helps...I think there would have been an RMP Provost Company as well but can't confirm which.