Engagement ranges, turrets and situational awareness of the crews of different AFVs seems very micro for an operational level game. That said, I believe all this is very theoretical, and actual combat experience tend to show that engagement ranges are often much shorter in reality than expected, and the differences between turreted and turretless AFVs are smaller than it would seem. Basically, as a tanker, if you are firing anywhere except in your frontal arc you have done something wrong.
Yes, in most cases the practical engagement range is going to be a lot shorter than the theoretical max... but not always so. And if you like watching the proverbial paint dry, try watching a battle on message level 7. You'll see the engagement closing from long range to H2H. I never finished a battle like that, got things to do, but I wonder weather the open top tanks go in with the sappers. It happened in real life but was a sign of shortages or desperation.
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