Yeah, looks good. Is this your first map?
I'd add "gamemode" "4", "maxteams" "2" and "forcejail" "1" to the worldspawn.
Your player spawns looks really good. But the blue team have 6 spawns, the red team only 5 spawns
Also there're a few wrong "angle" "#" values for the red team. Some players are looking in front of a wall after spawning.
Maybe it's a little bit hard to grab the flag. I could figure out 3 ways though.
You need to align almost all wood textures
I hope you know how they should be, actually I don't want to make a screenshot of every one.
One screenshot...
Add clip brushes here.