I liked it. There are a few places that need to be worked on, however. I thought the upper tunnel with the green healths off of the rocket launcher platform was way too low. Also, the interior section of the map can be seen - as well as all the caulk textures - when rocket jumping in the open area. I like what you did with the megahealth! Cool.
This map seems to be missing something. Game flow was haphazard and confused. I also give it a 5.