But you have a complete wrong expectation of War Thunder then.
This isn’t DCS where you buy a vehicle and can start to master it, even most modern one.
But this is evident from the first minute spent in the hangar: you see those literally hundreds of vehicles, and only the very first and simple ones free to use, and one quickly understands that one has to play to gain research points and silver lions to both research “better” vehicles and purchase and operate them. And how to win and lose SL is very evident from the beginning as well, as all actions that give money are printed in big letters and numbers: “hey look, I killed a player and won 1200 SL by doing so!”. And at the end of the match you see the whole “receipt” of how much you earned and won (and how), and how much you spent, in the form of repair or ammo costs.
It’s all there, very easily visible, right from the start.
Where’s the scam here?
Of course you can purchase higher tier vehicles from the start, but what do you expect of them? That you quickly or immediately master them and excell at using them, with all those other players just waiting to get bested by you?
No, that’s not such a type of game, and it never was, nor was it never advertised as such.
BUT, what I really find very exciting, is that indeed all through the tiers, all betwen the different nations, vehicle types and game modes, you need to learn, you keep getting challenged, you never stagnate. And even after playing tank realistic in mid tiers for a week or so, then air sim high tier for a month, then you go back to the tanks - you will again need to get accustomed to the vehicles and gamestyle.
It never gets boring (in my personal experience), except if I myself chose to play always the same thing and don’t explore the vastness of the rest.
Only point I give is that when you purchase a high tier vehicle you’re not explicytly warned that you may face much more experienced players with such high tier vehicles, and thus as a beginner may struggle. But, sorry if I sound condescending - isn’t this obvious?