Cool, thanks for the feedback! We've been redoing the layout a bit, I think we've noticed a lot of the same problems as you but we had different ways of solving them.
We ended up completely removing the drop down route from Mid to Long. It was supposed to be a nice little one-way rotation path but it made it too easy for players in Long to get attacked from behind.
We also redid Mid, and for a lot of the same reasons you said - making it wider and clearing some of those corners. Mid is now a straight path.
Right now we're focusing on improving B. We're probably going to end up redoing a lot of it but we'll keep your feedback in mind as we rebuild it. This will also change the time it takes for CT's to get to the courtyard, so we'll be sure it's not as easy for CT's to simply block the upper balcony with grenades.