[Imp]

Standard tactic creating a pocket & shutting the gap if thats what you meant, on the odd occasion AI has been known to try it by stopping its main advance & flanking down one side.
On points a normal delay would have given 2x your points or can set globaly prefs to whatever % you want for campaigns there is a thread somewhere.
So yes people play with AI set to a higher point value than yourself mines 130-140% cant rember which.