Well, it looks that squad battles gonna pass at 6.7 this season (it should be 6.3 but the snail forget that)
BI at 6.7 is just not ok, in air RB or squad battles, in squad battles it just climb more, get into the battlefield before, attack bombers before and clean air or attack AA before.
Yes, Spitfire mk24 can fight, but with the speed and climb rate of the BI it is just a defensive fight for the spit.
Yes, there are other vehicles that are dominant but most of it are in the tech tree or arent that OP at its br.
God I absolutely DESPISE the BI. I was playing the Spit Mk.24 and out of 10ish matches, I saw 2. Both of those games were a loss, like what do you expect me to do against it?