while the mp 44 may have been more advanced, you have one other problem - AMMUNITION- the 44 took 8x33 kurz which to this day is difficult to procure- so Germany would have ended up with some 4 standard issue cartridges, which is a real nightmare for logistics- the 8x57 mauser( standard rifle and the g43, fg42, mg34, and mg42 plus whatever else was out there- 9mm for the mp28, 38, 40, and the various pistols- the 8mm kurz, for the mp44,- and we thought we had it rough with the m16, m14, and m60- we really had only 2 cartridges to deal with in nam, and if it hadn't been for kennedy and macnamara, we wouldn't have been in dire straights at all- the m16 was a solution to a problem that didn't exist- a PROPERLY maintained 14 would have been perfectly adequate and now we wouldn't have the arabs shrugging off m16 hits