If it ain't nailed down
From Rabbi Blog
Have MG? Will move furniture!
People bugging you while you're in the sniper's roost?
Think the building route is getting too fast for the opposition?
From Axis side, this is a bureau near 1st flag that can be pushed down to the back path entrance, though the small stone wall there makes it easy to get over.
The piano is readily available on the Axis side on donner and you can plug up the alley with it within the first 45-60sec of gameplay with the MG. If you're good, you can get it to stand up the whole time. Allies can still get over it, however you can hear them grunting as they jump 2-3 times to find the small ledge on it.
Bureaus? Pianos? Collect them all!
Dire and I left out two bureaus, 1 near impossible to get out once it has fallen over and in the snipers bedroom 2nd floor Axis side. I ran out of bullets getting it out of the door.