[estearum]

Myanmar/Burma the strategy was build-to-capture: make improvised, unreliable firearms that could be used to ambush security forces and take their firearms.

Evidence against the point above that it's trivial to replace professionally manufactured small arms.

[mothballed]

There are examples of all the above. Kachine state "army" for instance was making Chinese and AKM clones. Others were making FGC-9 for purpose of taking other firearms. Some were using FGC-9 for driveby without any goal to take firearms. And others were using "professionally" manufactured arms to take other arms.