I recommend the book "Special Forces: The 83-year-old Activation System" to you. It tells the story of the Tang Dynasty's army and people who transmigrated to the world of Wolf Warrior and chose to activate the system at the beginning of the military exercise. Although this novel doesn't completely meet your requirements, it can be seen from this novel that the author has a deep understanding of military and technology, and the plot is relatively compact and interesting. I hope you like this fairy's recommendation. Muah ~😗