Finally I finished my British Sherman platoon for future TANKS games. These models were included in the old Flames of War starter kit "Open Fire". After some struggles with the decals from Battlefield Miniatures, I found out how to work with them.
The tanks belong to the A squadron of the 2nd Armoured batallion Grenadier Guards of the Guards Armoured Division. The markings may not be 100% accurate, but at least they add a little more color.