Yeah the ideas were that you are using the mole or, in case you get killed after rescoring him in single player, the rocket launcher to blow up the bed.
You surely missed the three coins in the middle of the second floor. You can get there over the roof and there is a secret passage in the shower marked with an arrow. Or you just breach through the wall just like normal people do.

I wanted to like the map, but you blocked off a few things on the second floor AND there are 3 missing coins. Check your registers and jewelry cases for coin issues!