I couldn't find a topic on this, maybe my search-fu is a bit off, but if there is pre-existing topic please close this topic.
I find it interesting that the upgraded weapons don't cost anything for the Red Banner infantry. Sure you paid the 200 ammo point cost to upgrade them, but the weapons the selves are free. I find it odd that most units (except for the BARs for the American Infantry) that these weapons are free.
In my experience, you're generally able to unlock the upgrade in mid to late game when most people have tanks and other heavy weapons, but it strikes me as odd.
Can anyone give an explanation why they're free?
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