On the other hand, I recall reading somewhere that people who were forced into making munitions for the German army during WWII got to be really good at manufac

On the other hand, I recall reading somewhere that people who were forced into making munitions for the German army during WWII got to be really good at manufacturing faulty products that would still pass rigorous inspection. If you're really concerned about the moral implications of a project like that, it might be worth keeping your mouth shut (since somebody's going to do it whether you do it or not) and finding ways to make it plausibly breakable.