I did say any battle from history, and I meant to clarify that as Napoleonic or before.Frankly I doubt it.
But then again I have no idea of what you know, or how much though you've out into this.
Probably best not to answer this, and go off topic.
(Sets off, contemplating strting a thread about "Useful skills of your present day person for making a living in the Roman era.")
It wouldn't be that hard. 30Kg of ammunition is 2,000 rounds. I wouldn't want a machine gun: just a semi-automatic. And then I'd just wander up to the battle and shoot 2,000 men from the side I wanted to lose. That's enough to sway almost any battle. There may have been some where it wouldn't be enough, but if we add in morale and running away, as well as the opposing side, I think I could change the result of any one battle in history.I would love to put you to the test.
Maybe 2,000 rounds is too little and I should have 3,000. That's 45kg, which is still light enough for one man, although getting heavy.
Just join one side and make it win. Don't set yourselves up as another side.The 'savages' always turned out to be a damn sight too 'modern' and clever to fall for stuff like that.