battleground team creation

[Nokia]

hey, im currently using this src add on from annie -> http://rathena.org/board/topic/72571-battleground-system-without-waitingroom/

 

plus this script:

 

waitingroom "blub bg", .minplayer2start, strnpcinfo(0) +"::OnStart", .minplayer2start,0,90,99;
OnStart:
	getmapxy .@map$, .@x, .@y, 1;
	warpwaitingpc .@map$, .@x, .@y;
	callfunc "rand__", .minplayer2start, $@rand;
	for ( .@i = 0; .@i < $@warpwaitingpcnum; .@i++ )
		setbgid ( .@i % 2 )? .red : .blue, $@warpwaitingpc[ $@rand[.@i] ];
	delwaitingroom strnpcinfo(0);
	bg_warp .red, "bat_c01", 50,124;
	bg_warp .blue, "bat_c01", 149,59;
	sleep 500;
	setwall "bat_c01",54,122,6,7,0,"batc01wall_a";
	setwall "bat_c01",55,122,5,7,0,"batc01wall_b";
	setwall "bat_c01",140,56,6,7,0,"batc01wall_c";
	setwall "bat_c01",140,57,5,7,0,"batc01wall_d";
	bg_updatescore "bat_c01", 0, 0;

OnInit:
	.red = 3; // red team bg ID
	.blue = 4; // blue team bg ID
	set .minplayer2start, 6; // minimum player to start

 

my question is, how to make this script without use waitingrooms?