Make sure you have openCV, PIL, and numpy installed
After that head to util.py and replace the request with whatever light or api you want to call when you get a kill
If your kills are not registering it may have something to do with your screen resolution. You'll want to grab a template that will fit your screen resolution, so just take a recording of your kill in COD. Then take a screenshot of that recording and crop it to only show the kill sign. Name that template.png and place it in this folder