I may or may not waiting for you to finish the battle with the martial arts before starting reading.
And believe me, it's totally worth it!
Please do mass release!!!
The Sten gun is a great cheap and effective weapon costing $130 to make per pop while AK-47 costs $700-$800 and M16 costs $700. It may not have the range or fire rate as the others but it is still a solid choice for mass production as you can at least 5 an hour.