The Lansen C is a new tank to the game. I believe it was released earlier this year around March.
You can pick it up for 7500 gold or for cash starting at $35 USD all the way up to $122 USD for the big holiday bundle package.
I have the Lansen and it isn’t a bad tank but it also doesn’t have anything to do with the tech tree tanks that were also released this year.
All the tech tree tanks have the pneumatic suspension and look more like the STRV TD line tanks while the Lansen C is more of a traditional medium tank.
Would I recommend this tank? I’m not sure. Maybe if you have a lot of gold laying around but I’m not sure I would put a lot of cash into it.