Going through the archives of CGW, I came across a reference to WIR and the AI routines.
CGW #40 Oct 1987 page 54
As for your remarks concerning
Kampfgruppe, when presented with
your comments, SSI conceded that
there is no stacking limit in the game.
However, they continued, Gary Grigsby
made a design decision not to have a
stacking limit because he felt it added
an artificiality to the system. The computer
opponent does not intentionally
pile troops into one area. Instead, the
computer groups units according to objectives.
If there is a large concentration,
it is due to the location of an objective,
not a "sucker punch." It is interesting to
note that the stacking limitation was enforced
in Battlegroup (Grigsby's followup
to Kampfgruppe), but that game has
never been as popular its predecessor.
As for War in Russia, the designer felt
that Minsk was a reasonable opening
move in order to facilitate consolidation
in the face of superior (at least, normally)
Germans. Paul Murray, who
programmed the AI routines established
an auto-retreat in order to establish
such a consolidated line. Nevertheless,
Paul states that the Al does search to
find where Panzer Corps go and the
program will reinforce according to
where the most Panzers are.