 He also worked on the music for a Duke Nukem release trailer.In 2012, Charlie announced he was not playing with Difonía anymore to focus on his next solo release, but instead joined the Canadian heavy metal band Kobra and the Lotus in the beginning of their European tour with Steel Panther, playing in Finland, Germany, Switzerland and Belgium.After that, they toured United Kingdom supporting Buckcherry and Sonata Arctica in United States.