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What if the US military realized the problems with the M60 machine gun and adopted the MG3/the modified 42 as their standard MG before Vietnam became an issue? How much of a difference would this make to the tactical conduct of the Vietnam war? As I understand it the MG3 was the same weight as the M60, but much more reliable and a highly proven design, while the M60 had a number of issues in the climate of Vietnam. Even after a number of modifications post-war it was replaced by the M240 due to the M60's reliability issues. https://en.wikipedia.org/wiki/M60_machine_gun#Design_flaws
Would the MG3 have held up well in the climate conditions and been a more effective base of fire?