Translated from source:
trophy BMP-3 has switched to artillery mode and simultaneously fires 100-mm and 30-mm guns at the Russian position
Translated from source:
trophy BMP-3 has switched to artillery mode and simultaneously fires 100-mm and 30-mm guns at the Russian position
Ballistics calculations are trivial nowadays. The shot performance for the 30mm rounds is known so if a target area is within range then the firing angle can be calculated for the bullet drop to result in a shitstorm raining down on it. The target is likely 10km away and is a farmers field, not 1 foxhole.
Drone spotting and correction will make this a lot more effective. Against a group in the open or hiding out in some houses it would be horrifyingly effective.
Direct line of fire from that 30mm is of course a whole different matter, but indirect fire from it isn’t that big of a deal (compared to actual tank/artillery) at the receiving end if you have at least some cover. Out in the open that’s of course effective, but I’d imagine a normal house wall would pretty much stop those rounds at 10km.
And even if it wasn’t lethal I’d still keep my head very low if I happened to be on the receiving end, so it’s definitely effective cover fire which allows others to advance.