Plutonium

Because something goes wrong

This is the category for all other languages that aren't english, french, german and spanish, so russian is included there

how quickly will the level of Bo2 zombies increase

I don't get what you're trying to say
Are you even talking about Plutonium as a platform?
We don't manage transactions with specific servers

The donation page for Plutonium which doesn't grant anything in-game is here
https://forum.plutonium.pw/donate