Order of Battle - Info request

Hi,

I am looking for information relating to the movements of Horst Mullers divisions/regiments etc during WWII as well as information about the 4th and 9th Armies.

Name: Unteroffizer Horst Muller

Regiments: Stab/Grenadier Regiment 589 (1943)
Stabsbatterie A.R. 321 (1942)
2 Verkehrs-Rgl. Btl. 756 (1942)

Award Documents I own:
EK 2nd Class awarded 16.08.1943
Eastern Front Medal: 06.07.1942
Infantry Assault Badge in Silver: 18.10.1943
KVK 2nd Class with Swords: 17.04.1942
Krim Shield: 16.10.1943

Promotion document from Unteroffizer to Schirr-Uffz. (K) dated 24.08.1942 and call up documents from 20 April 1940.