I appreciate the tip, however, a couple of notes: Sometimes the target *is* the checkpoint. Killing him, then quitting, will result in a save point post-target. 'Divisive Mind' in the Chamber story comes to mind. To work around this, simply change the difficulty level. This will start you at the beginning again. I'm fairly certain Checkpoints are reset after a week. Unless you get the same target in a week, you'll need to re-run the level. You may have said as much, but...8 minute video? Seriously? I ain't watching all that. :P