The natural progression in (strictly free-to-play)
World of Tanks is that you start with a Light Tank, then earn enough XP and Silver to buy the upgrades for that tank, upgrading it to the point that you unlock the next tank in the tech tree. Then, you have to spend XP to research and Silver to buy that tank before you actually
have that tank. This process of use, upgrade, research, unlock, buy, use... etc. is not a quick process, and the tech trees lead you through a variety of Light Tanks before you get into Medium Tanks and branch off into Artillery and Tank Destroyers, as well, making it take quite a long time to work your way through to a Heavy Tank. Which, in my opinion, probably works in the favor of most players, since Heavy Tanks move really slowly and it's probably best to learn on a Light Tank, rather than fumbling around in what should be one of the larger powerhouses on a given team. Still, players want what they want and who
wouldn't want to take the wheel (and gun) of a huge, heavy-hitting tank lumbering across the battlefield and wipe out enemies with extreme prejudice?
The KV-220 is an experimental tank and is not connected to any tech tree. It is possible that it might be made available again, but currently the only way to get this tank is in a Founder's Pack. Mind you, there are four PS4 Founder's Packs, and all four have the KV-220. And, if you buy two Founder's Packs? Any duplicate tanks awarded will be substituted for their equivalent in Gold.
