[wulfir]

Here are some suggestions:

Britain - 3 Royal Tank Regiment, 1940-45
Britain - 9 Royal Tank Regiment, 1944-45 (Churchill tanks)
Britain - Elements 7. Armoured Division 1944-45 (Cromwell tanks)
Britain - 7th Bn, Argyll and Sutherland Highlanders, 51st Highland Division, 1940-45 (infantry)
Britain - Hallamshire Battalion, 79th Div, 1944-45 (infantry)

US Army - Elements 66th Armored Regiment, 2nd Armored Division, 1943-45
US Army - Elements 4th Armored Division, 1944-45
US Army - Elements 746th Tank Bn/9th Infantry Division 1944-45
US Army - Elements 45th Infantry Division, 1943-45

Germany - II/212. Infanterie-Regiment, 79. Inf-Div, 1940-45 (infantry)
Germany - Elements 13. Inf-Div(mot)/13. Panzer-Division/FHH Div, 1939-45 (infantry/armour)
Germany - Strumgeschütz-Brigade 191, 1941-45 (StuG)
Germany - SS-PzAA11, Division Nordland, 1943-45 (Armoured Recce)

Finland - Elements Infantry Regiment 61, 17th Division, 1941-44
Finland - Elements Rynnäkkötykkipataljoona (Assault Gun Bn), Finnish Armoured Division 1944