I'm trying to create a scene after a long drop where the player tucks and rolls. My first thought was to have a point_viewcontrol follow a func_tracktrain but couldn't find a func_tracktrain in the entity list. Was it removed from the Portal 2 Authoring Tools?

This entity is brush based. It must be created from a brush.

http://developer.valvesoftware.com/wiki/Func_tracktrain

use path_track and put it to path_corner, i never used it but its the same than tracktrain, if not works you can make a invisible brush and parent the camera to the brush (the brush needs to be tracktrain)

Thanks for the help! I'll see if I can get either of those working today.