While deployed with the bipods and looking down the optics I can still move my view point around as if I was in free look mode. The optics view point moves when head tracking but the weapon stays stationary meaning the optic becomes misaligned as the head moves.
It behaves as if the optic is attached to the players viewpoint rather than the weapon.
Deploy a weapon with a bipod when using a 2D Optic. Move Head via TrackIR head tracking.
This doesn't happen when using the 3D optics such as the RCO. So far tested this using the MXM and MX SW and the DMS, MOS, LRPS and both TWS. All of these combinations produce similar result
I can provide a video if my description doesn't make sense
Same here, using Opentrack/freetrack. Also, since weapon stays stationary, shots are not fired to where the crosshair is aiming at.