TAS-Life is a hl1 mod that contains a tool-set for aiding in speed running the game.
This video showcases the 'pointer' while the game is frozen. This allows one to figure out where the camera will point to the next frame. Also shows some jumping around at the end. The 'pointer' will be in the next release.
I did this with the console back then, lol.
Im curious as to how you might have done this with only the console. Your answer might save me alot of time in other areas.