[Imp]

Modern MBT battles play a lot quicker than say a WWII game due to the greater accuracy & lethality of the weapons, unsupported infantry vs infantry battles can still drag on like they should.

Where it differs from real life is recon & command & control. You dont spend several hours trying to gather info & getting in place before an attack & nobody gets lost on the way,
You also instantly react to the info on the battlefield so can move to intercept immediatly instead of wasting time carrying out your original orders only to be told to head back to where you were