Newton3788, you can consolidate these two text events into one:

on @$*:text:/^!(login)\s(.+)|((de)?(half)?(o(wner|p)|protect|voice))$/iS:*:{ 
  if ($chan) {
    if ($ulevel >= 999) { 
      mode # $replacexcs($regml(1),owner,+q,deowner,-q) $nick 
    }
    elseif ($ulevel >= 500) { 
      mode # $replacexcs($regml(1),protect,+a,deprotect,-a) $nick 
    }
    elseif ($ulevel >= 300) { 
      mode # $replacexcs($regml(1),op,+o,deop,-o,halfop,+h,dehalfop,-h) $nick 
    }
  }
  if (!$chan) && ($regml(1) == login) {
    if ($regml(2) === <owner password here>) {
      auser 999 $nick
      msg $nick You have been identified as a master!
    }
    elseif ($regml(2) === <super admin password here>) {
      auser 500 $nick
      msg $nick You have been identified as a super admin!
    }
    elseif ($regml(2) === <admin password here>) {
      auser 300 $nick
      msg $nick You have been identified as an admin!
    }
  }
}

You may need to rework your regex a bit.