[Imp]

No idea if you meant units should surrender more or less often.
Lots of factors affect it by making morale plummet, seeing friendly units die for example or enemy’s killed.
Encircle them and they are more likely to surrender, then of course there’s the Japs.
Game works well and does something most don’t, throws you a surprise when routed troops suddenly decide to make a stand because somebody killed a few enemy soldiers.