Good point -- NC lacks a lot in CQC generally, well EM6 works but still. Useful data. Yeah, in the garden of CQC, not to mention it's a switching-back to the Orion. I do Wonder why VS is getting saddled with the random spin-ups in either case. That usually plagues TR's chaingun, but now VS is getting the annoying thing.
As for the Canis ammo part... sorta. The release Canis unstable ammo increased aimed bullet spread by 66%, but also granted a huge projectile size increase. However, the Unstable ammo attachment is actually slated to get buffed along with these LMG's getting released. While it has already been changed to reduce the head shot multiplier while using unstable ammo, next update is slated to remove the bullet spread increase from unstable ammo, while still giving the bullet hit box increase. So yeah, its the same ammo, and that ammo is getting buffed.
They reduced the Projectile size by half and set HSM to 1.2 after that the decrease in accuracy made it pointless to use just like the short reload attachment with it's increase in Horizontal recoil. so now they are turning it into a less pointless attachment again giving you slight leeway to hit but pretty much entirely removing headshots from the gun.