I had a lot of fun with it. The final point seemed a bit hard to defend, but maybe we just were bad.
I felt the capture area for the last point was a bit small for how quickly it capped, having it be bigger might make it a bit easier to defend (so players can stop the cap faster). That sentry spot on second was a bit strong, but got taken down fairly quickly so I dunno. Maybe cut that medium ammo pack down to small; by the time I ran over and picked it up and whacked at my sentry, it was back again, making upgrading that sentry and dispenser very quick and easy.
Paths were complicated, but I never found myself getting lost - all the paths naturally led players to where they needed to go. I found myself just running in the general direction of a point and found myself there. Could probably go for a bit of simplifying, though. Looking forward to later versions!
Oh and there was that one staircase outside of first red spawn that was hard to see compared to the background, I pointed it out to you in-game.