I just remembered a map that I made for Spirit of Half-Life back in mid 2004. After reading through the Features guide I thought the Movewith ability would be very useful and so I started up Hammer. I made a corridor about 8m? stretching the maximum length possible. I made a func_tracktrain that started at one end of the corridor that had an indoor control center with front windows and an open area at the back surrounded by railings (like a pickup truck but about 2 1/2 times bigger each dimension). You had to climb a ladder to enter the train from the open area at the back and the railing style gate(func_train) had it's own set of path_corners so it would slide in then along. There was a func_tank set up at the back and a func_door with glass to the control room.
At the same end of the corridor, there was a huge door that you could open from the func_tracktrain and theoretically, once the door was open the gargantua on the other side would chase you as you travelled along the corridor in the train.
What went wrong?
Well, I forgot to turn all the walls in the cockpit into func_walls.
The simple light entity in the cockpit didn't movewith (Not even after SmartEdit Off).
The railing door path_corners didn't movewith at least not properly.
As a result, the control room minus the floor was left behind.
After fixing that, I was left with wierd lighting inside.
The garg couldn't be bothered chasing the train despite me using the turret at the back to provoke it.
The railing door was all over the place.
It was just a huge mess, I just gave up.
