It wouldn’t be able to TVC above like 250 knots.
Proper harrier flight models and proper kestrel model I would still want it no more than 8.7.
For air combat it’s still limited by its high wing loading and will have no capability to off set that with thrust vectoring (not that thrust vectoring offsets the wing loading in war thunder anyways due to poor modeling of it)
It’ll have to fight in the vertical.
Except more than a whole br step down. Along with it being in 3 nations as a unique strike aircraft.