The original post says that they are drone operators from an anti-aircraft defense unit, but it did not specify whether they are from the anti-aircraft defense battalions of the Ground Forces or the Air Force. Since there have been no recent demands for the Air Force’s anti-aircraft brigades to urgently begin training FPV drone operators to deal with observation drones, I assume that this anti-aircraft defense unit in the video is from the Ground Forces, since an experienced operator requires training time.
Source: Hotrico