Loving how this could turn out, and looking forward for new upgrades.
I dont know how large you think this game will be, but I have some suggestions for the game further down the road: When you implement contracts, I would love if you could choose between more or less ethical choices, and that those choices would have an impact on your company.
Lets say you are selling to a warlord doing heinous crimes, you could earn a lot of profit, but risk bad PR. Bad PR would impact your position in the stock market. On the other hand, delivering weapons to more "clean" customers would not give you bad PR, but lower profits. High risk, high reward.
Paying off the media would shurely be an exciting option aswell. Desinformation, coverups or fake news about your competitors are some of the things you could do.
Industrial espionage vs doing your own research is also an idea. Protecting your own research would then be a natural consequence.
I allways like when you can explore different kind of options, and that choosing one path will lock the other, opening for higher replay value. Becoming a world dominating syndicate with no moral values or boundaries, or a pioneer in science that stretches beyond weaponry? How about space travel?
Once more, loving the game and how it could pan out.
PS: When I think about it, Im not sure how "ethical" you could be when you produce weapons, but I think you get my point.