Offline
I was able to carry a ppk for a few months of combat operations in 2004. People seeing it would ask a million questions, mostly because they were all marines and, well, marines are curious. I can 100% say without a doubt, it was the most worthless gun I've ever shot and horribly inaccurate!!! You'd have a better chance of hitting someone by throwing the physical gun at them than but using the tiny sights and squeezing the trigger to a surprise break.
I'll take a WAG on that sidearm and say it was likely one of the Houlton S&W PPK-S .380's. The German made .32 is a mouse gun and hardly a good choice for combat. The German made .380 PPK-S imported by Interarms is a well made, precision piece but again not suitable for combat environs. Although that version and its U.S. made Interarms iteration (though not as well crafted) are not bad for personal protection carry.