Not really a ''combo kill'' or kill confirm, but I've found that if you do his up grab, as soon as it ends do his level 2. I've yet to try this in an actual match, only in practice but who knows. It seems like a set-up, sort of like BDs shock plasmid to level 1. It's worth a try. Hopefully, we start finding more set-ups or possibly KCs, because the way I see it Emmet is anti-KC.
if you do his 20ap ground pound it goes into lvl2 ( his 30ap one sends them flying), basically any move that crupples and are in range or smacks them face down on the ground is a confirm lvl 2. The radius is too big to roll out of.