In this thread I propose to discuss ant like nature of manufacturing in XCom style game.
XCOM manufacture was simple - each item requires some amount of human hours to produce. Player hired engineers and sent them to workshop to produce whatever he wanted, As more engineers were sent sooner the desired item was produced. Almost perfect mechanics, except a case when 200 engineers had been sent to construct a single laser pistol in a single hour.
It was enough 20 years ago. As time passed this scheme was exploited by many other games and other problems appeared. For example in Xenonauts such approach in conduction with balance issues (I think) led to a situation where a jet warplane had been manufactured in same time as machine gun and in almost same price!!!!
Such problem is not vital to the game, but it looks ridiculous for people. There is some solutions on this matter. For example XCOM2 Long War provide a mechanics when some equipment requirs some kind of engineering research [in Provin Ground facility instead of a labaratory]. This process took some time, and them those item could be manufactured instantly.
That is not a perfect solution, but it looks more reasonable then a horde of engineer creating a baby firearm in a hour. This approach led me to an idea of assembly line for firearms, armor, ammo and rest mass production!
That looks more naturally. Assembly line still require a lot of time and resources, including manpower to build. Once it build it could be operated by a very limited amount of people. It can produce items fast (once the line is warmed up and production cycle is running) and very cheap.