Good news, everyone: Team Mode will become available ahead of schedule, as a part of the update currently scheduled for the end of the coming week.
Below you will find a brief (10-minute) video introducing the interface and explaining the rules of this mode (the video is available in English and in Russian languages):
https://www.youtube.com/watch?v=5g3UdOqGYAA
Any questions? Please ask them in this thread.