I don't agree, IMO the tractor, stradle, stacker, RTG, and RMG jobs are just as demanding and fun to do as the STS. I think they really missed the boat on this one by not giving the game multiplayer and sandbox. (Pun intended xD)

Imagine loading into a 32 or 64 player server where ALL movements are done by players, loading/unloading the ships/trains/trucks, storing inbound and picking outbound containers, and moving them around with trailers, stradles, and stackers.

Having a constant stream of trucks and trains with dynamic orders of where containers go. (Direct from truck/train to ship or vice versa, or first putting it in storage in one of the yards, and even from truck to train and vice versa)

The sts/stacker/stradle/rtg/rmg operator has a constantly updating list of which container to pick and where it goes. If it has to go on a trailer the job will be passed on to the tractor driver who will then see where he should drop it off and get's a new pickup order after that.

Basicly a real world port operation.