Excellent showcase! Honestly that Vigilance is such an underrated part of him. He's my go-to guy for G2099, as opening with Heavy will reset her Digi-Cloak, and triggering Vigilance and Power Gain next will let him attack without a worry.
How does he get the vigilance buff in the first place? Doesn't that boss have tunnel vision or something that makes you unable to land a full 5-hit combo? I vaguely remember trying out CGR, thinking his vigilance would help me, but getting clapped because I began to miss mid-combo.Although it is after midnight where I'm at and it was a while ago, so maybe I'm mixing things up.