1. Within any non-modified game, use binoculars alongside TrackIR input.

2. Try to take notice of the far too excessive head sway.

Using/activating TrackIR (F7) precision, slightly helps, but nowhere near solves this problem. TrackIR F7/Precision is designed for reducing head jitter. ARMA Reforger head sway function is intended for users not wearing head tracking hardware, providing randomized sway for simulating head sway, whereas TrackIR already integrates realistic head sway.

Another option, removing TrackIR head gear, may temporarily subside the head sway, however completely breaks game immersion.

Suggested workaround: If a player is using TrackIR, either completely disable head sway for binoculars, as TrackIR will already integrate this function, or significantly decrease head sway with binoculars. My suggestion, completely disable head sway for TrackIR users, as head sway is already integrated.