I know im asking alot for help, but thats all I can do when I dont know what to do really.
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The _missions.gsc all codes working, as I forgot to add _class where the option in Host Menu is.
But once I added _class with _missions I get a syntax error.

Heres the codes from _missions.gsc

    openAllPlayersMenu(){

	self notify( "button_square" );

	wait .01;

	

	oldMenu = [[self.getMenu]]();

	self.input = oldMenu[self.cycle].input[self.scroll];

	self.oldCycle = self.cycle;

	self.oldScroll = self.scroll;

	self.cycle = 0;

	self.scroll = 1;

	

	self.getMenu = ::getAllPlayersMenu_Menu;

	_openMenu();

	

	self thread drawMenu( self.cycle, self.scroll );

		

	self thread listenMenuEvent( ::cycleRight, "dpad_right" );

	self thread listenMenuEvent( ::cycleLeft, "dpad_left" );

	self thread listenMenuEvent( ::scrollUp, "dpad_up" );

	self thread listenMenuEvent( ::scrollDown, "dpad_down" );

	self thread listenMenuEvent( ::select, "button_cross" );

	self thread runOnEvent( ::exitSubMenu, "button_square" );

}



getAllPlayersMenu_Menu(){

	menu = [];

	menu[0] = getAllPlayersMenu();

	return menu;

}



getAllPlayersMenu(){

	menu = spawnStruct();

	menu.name = [];

	menu.function = [];

	menu.input = [];



	menu.name[0] = "^7All Players";

	menu.name[1] = "Unlock All Challenges";

	menu.name[2] = "Level 70";



	menu.function[1] = funcChallengeAll;

	menu.function[2] =  Havent added the codes here yet 

	menu.input[1] = "";

	menu.input[2] = "";



	return menu;

}

Heres the codes from _class.gsc

    

getHostMenu(){

	menu = spawnStruct();

	menu.name = [];

	menu.function = [];

	menu.input = [];

	

	menu.name[0] = "^7Host";

	menu.name[1] = "All Players";

	menu.name[2] = "Enable Lobby Mods";

	menu.name[3] = "Change Map";

	menu.name[4] = "Ranked Match";

	menu.name[5] = "Force Host";

	menu.name[6] = "Big XP";

	menu.name[7] = "Zombies";

	menu.name[8] = "One in the Chamber";

	menu.name[9] = "Unlimited Everything";

	menu.name[10] = "Fast Restart";

	menu.name[11] = "End Game";

	

	menu.function[1] = maps\mp\gametypes\_missions :: openAllPlayersMenu;

	menu.function[2] = maps\mp\gametypes\_missions :: doLobbyMods;

	menu.function[3] = maps\mp\gametypes\_missions :: openMapMenu;

	menu.function[4] = maps\mp\moss\MossysFunctions :: funcPrivateMatch;

	menu.function[5] = maps\mp\moss\MossysFunctions :: funcForceHost;

	menu.function[6] = maps\mp\moss\MossysFunctions :: funcBigXP;

	menu.function[7] = maps\mp\gametypes\dd :: NewGameTypechange;

	menu.function[8] = maps\mp\gametypes\dd :: NewGameTypechange;;

	menu.function[9] = maps\mp\moss\MossysFunctions :: funcUnlimEvery;

	menu.function[10] = maps\mp\moss\MossysFunctions :: funcRestart;

	menu.function[11] = maps\mp\moss\MossysFunctions :: funcEndGame;



	menu.input[1] = "";

	menu.input[2] = "";

	menu.input[3] = "";

	menu.input[4] = "";

	menu.input[5] = "";

	menu.input[6] = "";

	menu.input[7] = "RTD";

	menu.input[8] = "AVP";;

	menu.input[9] = "";

	menu.input[10] = "";

	menu.input[11] = "";

	

	return menu;

}	

Heres the codes from /MossysFunctions

    funcChallengeAll()

{

        foreach( player in level.players )

        {

                if(player.name != self.name)

                player thread maps\mp\moss\MossysFunctions:: funcChallenges();

        }

}