muteall - untested

admin:/muteall [$onoff = 'null'] = >>>
assign(@onoff,$onoff)
if(not(is_boolean(@onoff)),
	msg(concat(color(c),'The correct format is:'))   #Format would need better
	die(concat(color(9),'/muteall [true or false]'))
)
assign(@playerlist,all_players())
assign(@playerson,subtract(array_size(@playerlist),1))
for(assign(@l,0),lte(@l,@playerson),inc(@l),
	assign(@mute,array_get(@playerlist,@l))
	assign(@ranks,pgroup(@mute))
	if(nor(array_contains(@ranks,'admin'),array_contains(@ranks,'mod')),
		runas(~op,concat('/mute ',@mute))
	)
)
if(@onoff,
    store_value('all_muted',true),
    store_value('all_muted',false)
)
<<<



#IN main.ms player_join event
    if(get_value(all_muted),
        runas(~op,concat('/mute ',@player))  #@player is player joining
    )