I swapped to this early last week after deciding I liked the 3xAC5 build, but I didn't love it. And then today it got buffed. You pick a spot about 150m back from your front line friendlies where you can still get a pretty clear shot and wait for an enemy to commit to a push, and then just spray. It suppresses, it deals decent DPS, and it seems to jam way less after the buff. It's actually a pretty great use of a Rifleman, similar to the standard AC5 builds but with a chainsaw twist. I like how Smurfy and AweMech both refuse to calculate cooling efficiency. I dunno, I've jammed up on all 3 guns before I even got close to running warm.