I've just uploaded the first release of my path recorder, perfect for recording intro cams, also good for vehicles. You record, then edit your movements, when you're done, chat !save, and you get a QC,VMF instance, and SMD. All you need to do is compile and slap it in your map.

Some more features to come. chat !help for a more complete documentation (though still needs some work).

Bugaboos, smoothing the angles can take too long, and Squirrel kills the function call. Any convar to override the timelimit? Also, DebugLines are weird, they don't want to render if they are not in view when created. Let me know what you think!

https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=179285327

Basically you record, your movement, then play it back and you can drive the path (pitch,yaw,roll) or X,Z, smooth as needed. You can also do path selections.

Quick instructions.
Melee, starts/stops record.
Attack, starts/stops playback

chat commands
!help (serious, read it)
!smooth (smooth the path)
!smootha (smooth only angles)
!smootho (smooth only vertices)
!draw (draw the path)
!name (set the model name, files go under ems/modelname.mdl/
!save (generate qc,mdl,vmf)