I think such FAQs are unnecessary. You can look up keys in publisher's manual (Steel Armor Handbuch something), pages 39-45, Graviteam's latest up-to-date manuals are in docs\support (but I don't know whether they are in Russian or English). Also, there is in-game help - F1. And all buttons on the screen have tooltips.

I think you could successfully play this game entirely from the commanders position if you wanted too. However I'm a micromanagment freak and love tweaking gunsights and messing around in the commanders position.

TBH I would say your time will be divided between commander and gunner. Only time I bothered manning the loaders outer gun position in the T62 was when my vehicle had been detracked in a ditch and was completely hull down. A bunch of enemy infatnry were incoming on foot and the tank neeed defending - the loaders gun position provided the only means to repele their assault - exciting stuff!

Skimbo