Plutonium

Can anyone tell me the config / commands used to get that effect? Looks so damn cool but I can't find a scrap of information regarding it. I asked the uploader of the video I saw and he told me to "dM oN tWiTtEr." Plz help

I want to play around with a few things. Can I use the terminal to give me weapons from campaign and zombies while I'm in multiplayer?

Had this issue myself and found that i had the key mapped as my mic toggle in Shadowplay on Geforce Experience. Might help someone in the future