Plutonium

I am getting the following error,
' Scr_EmitFunction: function "randomdrops" in file "maps/mp/gametypes/grnd.gsc" referenced unknown function doc130flyby from script maps/mp/killstreaks/_airdrop.gsc '
when i load into a private match. it just returns to main screen with above mentioned return

Xerxes Even with my mod not overwriting any built-in GSC files (only adding new GSC files) this error still occurs. Even when loading the mod but not running any of my GSC code, it still crashes with this error. I've narrowed it down that adding more than 42 localize assets to my linked fastfile (just those localizes, nothing else) causes Downturn to freeze upon load. Why is it freezing when I'm only compiling localize assets to the mod?