Play 1940 Campaigns with surrender option on.

[Dog Soldier]

Actually, PvE is referring to the F40 game where the default fire options are the Alt ones. In this case, very small units alone in cover have to be rooted out by assault. Banging away with direct fire will not make these boys come out of hiding and stand at attention in the front yard while waiting for the firing squad.

I look at the default rule as being very good. Hunting down enemy stragglers who just want to hide until the other side has left the area, takes time. The optional surrender rule is meant to mimic the old cardboard games.
The flaw in the optional surrender rule, IMHO, is it allows a unit to cause an enemy surrender and then proceed with full capabilities for that turn.

It is true that the Belgians and French in May 1940 surrendered to "tank fright". There are accounts of columns of French soldiers walking into captivity without any German guards.

Just play the Allied side in the CG of F40. This phenomenon is there as units vanish from the board, leaving your lines looking like swiss cheese. Now that can be even more frustrating than the stalling of a few German follow-up infantry battalions having to round up the "broken" prisoners who are too dazed to fight after the panzers mauled them and moved on.

IIRC, that was the purpose of the German infantry in this campaign. Hold the territory the panzers had over run, and collect the prisoners. Nothing wrong with that, IMHO.

Dog Soldier