I, the Ghost Sniper God of the Anti-Japanese War, Judgment 731

[Sharpshooter + Modern Weapon + System + Decisive Killing] The top sniper Ling Yun travels through the parallel world of the anti-Japanese era with swords. At the beginning, I encountered being chased by Japanese soldiers. VSS sniper rifle? M24 sniper rifle? Barrett? Even a thermal imaging camera? Kill the Japs to get points and redeem them! My weapons are not the best, only better. They took refuge in a heavily guarded base? I have a weapon that can break through walls and snipe from a thousand meters away! Did they escape by plane or tank? I have individual anti-aircraft missiles and electromagnetic guns! There is no reason to argue, no negotiation possible. My existence is to tell these demons: I will use bullets to clean up the crimes you have committed one by one.