Did a quick run-through by myself and noticed a couple big issues. Nothing that stops the map from working, but pretty glaring nevertheless.
First off, the map's fullbright. You probably have a leak somewhere that needs patching. Your water's buggy too, and doesn't render itself of anything below it unless you dive into it. All the water in the map is like this, but here's BLU's spawn since that best illustrates the issue.
Also, these trigger brushes (probably intended to be trigger_hurt?) are solid and visible. I've had this happen before, you probably just turned them into normal brushes by mistake.
The 3rd stage seems to be lacking signs as well? There's a few pointing towards A, but B has nothing. It seems like there's only two ways to get there-- the long underground tunnel and the beachfront chokepoint, but neither of these paths were very obvious and I only found them by stumbling into them.
I hope you fix these soon! I'd love to give this map a proper run-through when it looks as intended!
