I just emptied a clip with and without the compensator equipped standing behind a line, aiming at same spot with red dot scope, the gun elevated the exact same =\ 100cert and it seems bugged.
If you haven't already, I'd suggest submitting a bug report thru the in-game interface so we can look into this issue.
Makes me wonder if other certifications for the NS-11A are broken.. because I still have a helluva lot of horizontal recoil even with the foregrip.
Foregrip has been wonky, and some people report issues and others do not. A population of players is leaning towards testing it in full automatic at long range instead of short range, but...
I am having the same problem with all of the other NS-11a certifications. Seems that I wasted 300 certs on attachments and my gun still have the same amount of vertical and horizontal recoil with compensator and foregrip. Dammit! Initially I thought that my gun was getting better but it just turns out that I'm becoming a better shot with manual compensation (by moving my mouse when firing) Can anyone shed any light on this problem?