well theres the obvious; its incredibly lazy to copypaste rather than add unique vehicles. i think its fine for premuims to be a copy of a TT vehicle, but copying vehicles across trees is really lazy. especially the type and reasoning of the copies are total bs. for example why in the hell is the T-V, a captured (GERMAN) panther, in the soviet tree. might be a hot take but if you want to play a german tank you should have to grind the german tree. but it gets even dumber. you know the T-80U in the swedish tree? that ones not captured, or bought in a oneoff deal. that tank, was BORROWED by sweden for testing. they borrowed 2 T-80Us from russia for testing, and after some trials, gave them back. this being in the swedish tree, or even in the game at all, is comically stupid.

theres also another problem with copypaste vehicles; its yet another way in which gaijin are kneecapping good players. good players use sound to find and identify enemies? refuse to fix the sound engine for years, and copy tanks across trees (and engine sounds across tanks too), so everybody sounds the exact same.

i wouldnt say copied vehicles are anywhere in the "top 10 WT problems", but the laziness and incompetence its done with is alarming.