Basically try to lift up the finger you are fretting with slightly and try doing this with distortion. Start slowly with a metronome. The picking hand doesnt really matter try top play the whole arpeggio staccato(either by alternate picking or sweep picking) i would also recommends start doing this with the C shape because That is the easier to shape. Sorry if this is a little short im cooking at the moment so just ask if you need some further explanation and ill try to answer thyou question as good as in possible can