Very promising intro but the rest is unfinished.
Looks like you started off very well but the ran out of patience and just put some filler in. At least making music background to the still slides, and perhaps adding some sort of drawing there would make this a good educational movie...
As of right now this looks like a high-school homework assignment that was done just to get the teacher off your back.
you did what you promised
with no uncertainty, did you fail to do what you promised, but theres still more that could have been done. what about reports of there effectiveness on the field? quotes of people who manufactured and useed them? Sense this is not really a game, I can not really feel the fun. To me, this feels like a report, an essay if you will, and I believe more information could still be offered. This was very informative, and I did enjoy your personal review of the "ranking" of the guns, but what validates your critique? why should I believe you?
overall, worth reading and well-thought out. I hope that you can expand your thoughts on this subject to other wars and generes etc.