Considering how meta these doctrines are in teamgames, Jaeger Armor and the ISU-152 commanders will already be nerfed in the upcoming patch.
Their bombing strikes will be replaced by the JU-87 AT strafe (the single pass) and the IL-2 AI strafe (the single pass) respectively in order to tone down the versatility of these commanders and to create more room for counterplay with heavy indirect fire. The latter will likely also be buffed/fixed a bit in the next patch, given how it works a bit weird atm.
Why not just outright remove Aircraft abilities from that doctrine.
Remove recon, replace it with a flare launched from 251 or something.
remove strafe all together there is nothing Jager Armor about that ability. Replace it with ap round.