I Have Unlimited Arsenal in Another World

What should I do if I travel to another world? Xia Mo from the original earth came to another world inexplicably, carrying with him an arsenal with unlimited production, and guns were refreshed every day. I thought that was it, but I didn't expect that this arsenal even has tanks, aircraft, and warships! Isn't it easy for a good guy to dominate another world? This world is very chaotic. Many people die every day. Various wars are happening constantly. There are also elves, dwarves, orcs, orcs and mermaids. In short, this is a wonderful and interesting different world. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.