When using the Grendel with a Suppressor, and Single-Shot (and Assault Scope) the Single shot bullets are not suppressed. However the Burst fire is suppressed. Shouldn't the single shot be suppressed as well? Was this how you intended it to be?

For sure it should be suppressed!
there's a glitch then

I had a problem with the laser-aim in some weapons, sometimes it disapear, on single player and i had to change the weapon to fix.

and when change from single-shot to non, it doesn't work sometimes to, it just fix when press select button and change it again on menu; it was with the scarab i think....