I show you the batallion level for an soviet tank corps in 1941, a Infantry division 1941 and corp and army troops - all examples historical for the 4th army on the Brest wing - the southern soviet army from the western Military area.

some maps:
Army group center 22nd to 28th June 1941:

Deployments Army group center 21st June 1941:

One of 47 detailed maps - here the Artillery MG Batallions North of Brest and the fortifications of the 49th Elite Infantry division:

H.Balck