This map is great, and does a good job at restoring this level back to what could've been it's pre-war state.
I'm not hating, just simply suggesting something.
In the map, there are 3 props (models/props_wasteland/antlionhill.mdl) placed around.
These are there in default hl2, so i don't blame you for that, but I'm pretty sure they're supposed to be antlion nests.
Perhaps you can change them to normal rocks, or don't, it's your map.