Go into the Scripts/Mission folder. Find fp_freeplay and fp_challenge. There is a line of code in there that says Game::ExecuteCommand(DummyUpdateWater) or similar. Delete that line from the code.
Yeah i saw that pack, but unfortuantly its all military stuff so i'm not sure i can use it. I currently have two guys working on skins and as soon as the security skins are done I can start releasing some more videoes and screenshots If you think you can do something to help with the mod you are more than welcome to join DMC