Have you played CTF?Looks a lot better already! Though I'm worried that the intel room looks rather large and open. It could benefit from a bit more cover for Engineers to set up their defenses.
Engineers will hug the intel room like its there baby, and never let go of whacking the sentry, no matter how boring it is...
If an a engineer thinks he cant setup right on top of the intel, he might decide to push forward and be a productive engi.