I mean that you don't need to run buildcubemaps with 2fort water.
The problem with buildcubemaps is that the game will think that a map with the cubemaps built is different of a map without the cubemaps. So you can't join servers, etc, or their may be a way but anyway I don't know a shit about map hosting anyway
I even heard that you could include the textures in the bsp.
If you can explain me some tips, I would gladly hear them.