Hi,
1) When you shoot with a 3-round burst (so far, I tried the P90 and the G36C - both do it), the game eats one RMB before you can shoot again. It doesn't happen all the time, but the majority of the time.
2) Sometimes, (pressing the key for ) Drone or Binoculars doesn't work. Can't get them unless you restart the game.
I opened a case with them earlier this week on the issue & they said they were not aware of it, but would investigate.
I figured out the issue that is occurring after more testing last night. The problem comes from releasing the trigger (a.k.a Left Mouse Button) BEFORE the burst fire completes. If I make sure to keep the trigger/button held for the entire duration & only release when the bullets stop firing, then the next trigger/LMB press works correctly the following shot.
Obviously, this is problematic in intense fire fights where you may let go off the button early to dive for cover; then your next shot will not work when you need it to. Hope to see a fix for this soon.
For me the drone issue usually fixes itself by travelling far enough or fast travelling. Anything it seems cause the game to load.