Gameday :
The general ambiance is great, (now add some birds
) but it's a bit too much based on the same props. As said, whether the defending team can setup a fair defence or not, the passage from 3 to 4th cp can be a peace of cake or a grind meat. There aren't so many routes in this map and one of them being one's man width is tricky.
And as you may have seen, the last CP was almost undefendable : bigger culprit was the respawn time vs the short walk to get to it from 4th cp. And height advantage for offensive team. Many 5 CP have quite difficult last control point, you may want to go in another direction, but it's currently broken.
I've no issue with the design of your central CP, and love the brushwork above.