1. Use External hacks AND, in mirillis Action put it to record the Game/Window AND NOT a section on the screen. Sections record EVERYTHING you can see with your eye.
2. Bandicam is a Recorder which can RECORD ONLY THE openGL or SoftRaiser Window or any other GAME window, so the External Hacks aren't seen. I use it for my Lives on youtube so no one sees I hack :3 xD
3. I record with DEMO. Use your hack and record it. When you Stop Record, just Open the Demo and use Mirillis to record the Recorded DEMO. *Mind Blown*
Hope this helps