The Milewater Road staff bus leaves at 17:30. There is also one at 16:30 driven by a driving instructor using one of the driving school buses and the morning bus from Europa at 8:45 to Milewater Road is also a driving school bus.
The Duncrue Street factory workers have a separate staff bus from MWR offices and the driving school.
The 17:30 Laganside bus usually has its destination set for the last service it was on so can be interesting that way.
The other staff bus I know of is the 12:30 Happy bus on Thursdays from MWR to Castle Junction for shopping. It is one of the driving school coaches and you can see it waiting outside HMV or Dixons at 13:30 on Thursdays for the return journey.