Actually, no bad idea. I'd like it if it was made up similiar to the casualties meantioned in the trailer (somewhat serious and maybe a bit tragic, not like [CoD]"Kill count: 132 Jerries!"[/CoD]) .
Maybe instead of showing one overview-point of the map all the time, the screen would fade to black with white writing, showing the total amount of soldiers in battle per side (= maximum reinforcements set by map) and the casualties per side. Maybe a little text would be nice too:
"The grim battle between [Allied Team Name by map] and [Axies Team Name by map] finally ended, but many men lost their lives:"
I wouldn't like to see a "kill stat" at the end of a battle, but since Red Orchestra already pictures the gruesomeness of the eastern front a meantioning of the casuatlies would fit in very well.
If the loading screens would include some historical information about the upcoming map, it would give the battles of Red Orchestra a very unique touch.