It's been attempted before, but i'm giving it another shot. This could be used for both the existing game and new one: https://docs.google.com/document/d/1r6hVICBaHXC8J6HlSO5J7hTXJcBYoFW65PCSEW3YRPU/edit?usp=sharing
I'm obliged to mention that Sovietshark's working (ish) on a three-part tutorial right now - one for infantry, one for vehicles, and one for commanding.
Yes I am. Duke, if you would like a look at the tutorials let me know. They are meant to be played on their own, so they wouldn't show up while in a game as tips, but it is meant to teach players the basics of each class, tank customization, and basics of commanding.