PV + Energy Sword / Shotgun + Speed Boost from ordnance is pretty much a guaranteed killing frenzy. quite often within a single minute thanks to instant respawn. or receiving damage boost when you have a SAW.
Used to have to earn my frenzies and riots, felt awesome. now it's like big deal, who gives a shit. i was just lucky enough that i got a sword or shotty instead of needler and sprinted like a madman with mobility around the map lookin through walls and shooting / slicing people in the face.