Well, i hate being a noob but can anyone help me?

here i the error

******* script runtime error *******
cannot cast undefined to bool: (file 'maps/mp/gametypes/_menus.gsc', line 13)
if(!level.xenon)
*
called from:
(file 'maps/mp/gametypes/dm.gsc', line 84)
thread maps\mp\gametypes\_menus::init();
*
called from:
(file 'maps/mp/gametypes/_callbacksetup.gsc', line 15)
[[level.callbackStartGameType]]();
*
started from:
(file 'maps/mp/gametypes/_callbacksetup.gsc', line 10)
CodeCallback_StartGameType()
*
************************************
writing to: C:\Program Files\Activision\Call of Duty 2\servercache.dat
Error during initialization:
script runtime error
(see console for details)
(file 'maps/mp/gametypes/_callbacksetup.gsc', line 10)

Make sure that your main is free of any mods, mods outside your main do not matter, set pure to no when testing map and turn developer off. Sometimes i get erros like this and then i turn developer off and it works. That could be the cause. let us know how it works out...

removed all mods and still getting error

******* script compile error *******
bad syntax: (file 'maps/mp/mp_ladder.gsc', line 1)
{\rtf1\ansi\ansicpg1252\deff0\deflang1033{\fonttbl{\f0\fswiss\fcharset0 Arial;}}
*
************************************
writing to: C:\Program Files\Activision\Call of Duty 2\servercache.dat
Error during initialization:
script compile error
(see console for details)




now im getting this one it says my .gsc is bad but i copyed it rite form this website please help