haven written multiple post regarding the bane of higher tiers GFAB.
specifically helicopters have spawned in within 2km on top of me on a regular basis, which narrows your reaction time significantly. OSA’s with its slow traverse is a sitting duck.
on topic:
The Strela is by far the Best SPAAG i’ve played so far, my USSR variant sits at 3.5 K/D (168 battles) and the German variant sits at 5 K/D ratio (only 18 battles).
it locks on too fast, is rarely influenced by flares and being FnF you can relocate unlike most SACLOS SAM’s which need manual input.
when is see one or even more on my side, it’s no use to spawn any other SPAA WHILE THEY ARE ACTIVE.
even ITO-M, FlakRakRad with VT-1, a superior missile in all aspects, except you can only guide one at a time, while Strela can launch all 4 SAM’s in very quick succession at different targets.
Unless you get SPAA with the ability to launch and guide multiple SAM’s at once Strela will always outperform you.
The only SPAA that can outperform it, is the Type81(C) it’s SAM outperforms the Strela in every way, but the size and mobility of the vehicle makes survival a different matter.