They started off after WWII using Axis style weapons and chamberings and then transitioned to com block calibers and weapons with some US stuff mixed in, yes they had some M1 Thompsons and older M16's.
They even made MG34's and I think MG42's or at least they were used in the last war. Most of the older stuff was all 8mm Mauser inlcuding the MG34's and 42's
All kinds of things turned up in the last war there, even MP40's the previously mentioned M1 Thompson AK's from all over the place, M48's and K98 mausers that were restamped, scorpions, G3's, MGL's RPK's, PKS
s, and various pistols manufactured over the years as well as stuff that was captured after WWII.
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