Encirclement

[Blackcloud6]

Yesterday I finished playing Beyond Normandy #21: 43rd (Wessex) Division Attacks.  The SS almost got surrounded in Mouen, but they managed to keep a corridor to the rear open.  This got me thinking about encirclement.  PG has no rule for personnel units receiving fire from opposite flanks or from both the front and the rear.  One of the goals in WWII infantry combat was to outflank or encircle the enemy.  So, should there be a rule/house rule for PG that gives a detrimental effect on receiving such fire?  Or just the mere fact that the unit is receiving such enough to replicate the effect?  I can see arguments for both ways.

One could say that a unit that is encircled suffers a +1 to any morale checks or recovery or something like that, but there are cases where being encircled embolden units to fight to the death.  Maybe this should be left up to the scenario designer to decide?