odd SMGs out
The Danuvia M43 fired the powerfull 9mmMauser round, making it the weapon of choice for those who want to have the most firepower. It works very well as a PDW. I allways liked the Beretta M38, that makes a excelent weapon for second line troops and with the smaller magazines doubles as a light rifle for short range, accurate fire. Given that, does the sweedish M45 qualify? It was designed during WW2, but only entered service later, and was a favourite of special forces in the VietNam era.