This ability seems too strong to me. You get a massive damage boost against targets the axis relies very heavily on and it synergizes way too well with the P-47 and B4. Using this ability it seems way too easy to just coordinate a few button clicks amongst your team and take out a KT or Jagdtiger.
I suggest changing it from a received damage boost to armor reduction. I'd also shorten the duration or at least make it end when the plane gets shot down.
I can't believe this isn't a troll.
Nerf the nerfed Mark Target please.
Please Romeo, please tell me you're trolling hard.