is the SAM shown merely point-and-shoot or more sophisticated in terms of finding the target?
(Dons spotter hat)
Looks to me like a 9К32 “Cтрела-2” (Strela-2,
Arrow), known to the professional military denizens of this forum as an SA-7 Grail.
So it's a heat-seeking missile designed in the late 60s. So not a very good one. You're theoretically supposed to aim ahead of the target to reduce the horrible inefficiency of the course the thing will fly in order to hit it. More or less comprehensive operator's instructions are available on Wikipedia, hilariously.