// script.c после BUILDIN(bg_reward) { .... }
// добавляем: 
BUILDIN(bg_team_reveal)
{
	struct battleground_data *bgd;
	int bg_id;

	bg_id = script_getnum(st,2);
	if( (bgd = bg->team_search(bg_id)) == NULL )
		return false;

	bgd->reveal_pos_sub = 1; // Reveal Position Mode
	return true;
}

// после BUILDIN_DEF(bg_reward,"iiiiisiii"),
// добавляем:
BUILDIN_DEF(bg_team_reveal,"i"),