1. It's a PCC, as a general rule of thumb, a PCC is not typically considered for or designed as a "front line" gun, that is specifically almost always rifle territory, those are built for use and abuse beyond reasonable expectations. PCC/PDW style guns are meant to supplement larger caliber small arms, reliable and generally durable, a little bang n bump here and there, not necessarily a 4 story drop.
That being said, as far as PDW goes the scorpion has been routinely pushed past some impressive roundcounts, hitting 5k, 10k, and 15k on a ton of guns without hiccup. My personal gun is over 2k for sure mostly suppressed with 124 grain standard and +p stuff. It is capable of easy hits at 150 yds, but adequate energy on target is 100 and less. I'll grab mine when its needed without hesitation for a light handy low recoil gun to sling massive amounts of lead downrange a stones throw away