Do you have the crew and vehicle maxed?
Because the Bos is one of my favorite SPAAs and I routinely catch planes wheeling overhead. Because of its quick handling elevated gun deck and the amount of HE in a shell only requiring 1-2 hits for a catastrophic kill, coupled with a rate of fire that nearly always provides 2 or more hits, very few planes escape me.
It also depends on how you’re playing. I generally hold fire and anchor up against a building or some other cover that prevents one side of my vehicle from being attacked, and then try to ambush planes coming to bomb or attack other SPAAs.
Another good tactic if you see a plane coming is to fire a string off 45-90 degrees from his heading. Make him think you’re not watching him and when he comes to pounce on what he thinks is an unsuspecting AA gun, you shred him because you’re partially obscured behind a rock that blocks fragments/bullets.


