Conclusion is that PetroAI is insanely overdone with its magical IFF and ability to tell arms type in unit's hands at 10km, and you spotted 6 pixels at 2/3 of his range.
On the other hand 9k113 offers almost nothing to improve the ability to spot units, bar +0.5x, massive image mask, and stabilisation to player in that seat.
x10 optic is quite a nice magnification scope in every other aplication, but not in hind.
Yup, the unrealistic ability to focus in-game camera field of view on a piece of equipment or a feature just like it is possible on every single other dcs module or a flight sim, is what hind's CPG is missing.