Well, like well, it has the 2 doors and the 1 way water door leading to well, and it looks kinda like it, and it already has a similar layout in the last point, so ya, it might be a bit too similar.
Me thinks that the main problem is that the main floor with the cp isn't hard enough for the attackers, and that they actually get that small health next to the doors that lead in, and from the stairs, they get a small height advantage that really helps out attacking soldiers.
Defense needs an easy to get to height advantage in the main room. Maybe, next to the point, throw up a box with a ramp to it to soldi have a small height advantage.