Support, I too have had a 1st person run-through of this map and can say that it would be an amazing addition to Infection.
I really like the build but a main concern I have is that it is too parkour focused to get to the good hiding spots which makes it very easy to just have a human camp with a bow at the end. To counter that I suggest adding an alternate parkour course to get up, perhaps one that only zombies can use because of their speed 3 buff. Just something to consider, other then that, Support.
I love the idea for this map, and the looks of it. However, no support. The places 0n this map that are op, are in my opinion too op. I don't really like maps that have parkour, and or obstacles in order to get to the op places. It tends to make the map a bit human biased in my opinion.