Hey there
I've just had a quick look at your map and I can't quite figure out, where you are supposed to go or where the B spot is.
Maybe you can try to block of the unwanted passages, to make clear where you are supposed to go. And you should make the map open to defusal mode, if you'd like to make a classical map with two Bombsites.
The house at the spawn looks very nice and is someting you can build on.

If you have any questions feel free to contact me.
Keep on Mapping and have a good one
WoodTree37