If You Kill a Japs and Add a Little, I Will Leave No One Behind on the Island!

Qin Feng traveled through time and became a local brigade commander. He was stabbed in the back by his boss and awakened the replacement system. He used Japs to add points, and the replacement points can be exchanged for aircraft and cannons. From then on, there was an uninhabited island in the world. Qin Feng accidentally replaced it with a super empire.