La-11

Once tier VIII premium plane that comparing to same tier La-9 traded one cannon and rocket booster for smaller dispersion and better maneuverability.
Turned out to be utter crap - is too slow to chase other tier VIII planes and lacks the punch to destroy them in single pass.
In previous (1.x meta) WG gave it for free to anybody bothering to take it, in current meta (2.x) it became so weak that it was removed from premium store. Most probably to avoid returning money or gold for disappointed players.
As something free - it's okish, as something for money - not at all.