Nothing game breaking I just thought it was neat as I accidentally pulled it off by accident and killed an enemy with the ghost. The video I recorded shows how to pull it off couldn't record myself hitting an enemy with it. To do the glitch you have to deploy the ghost, and melee right afterwards. Doesn't always work as shown in the video you need specific timing. I found this by starting a patrol mission and meleeing as I got attacked. Killed an enemy with a ghost was weird noticed it looked like a wire was connected to my character.