I, the Machine Girl Commander

The world needs order, and maintaining order requires some means. There are many people who have traveled from different worlds, and they have brought many changes, but there are even more people who have traveled through time and are dishonest. At this time, we need to deal with it, and even have to compete with unscrupulous colleagues for orders. You have the repeating crossbow, and I have the heavy machine gun; you have the magic armor, and I have the tank armor; you have the indestructible legendary spear, and I have the depleted uranium armor-piercing bullet with a penetration depth of 700; you have the magic flame that burns down forests and destroys the plains, and I have the napalm bomb that turns steel into wastewater; you have the blasting skills that break up mountains and rocks, and I have the thermobaric bomb that destroys all life. To deal with unscrupulous time travellers, you have to use even more unscrupulous means! You don't? Brother, are you just going to fight them with a big knife? You say I don't have it, but my wife does! ————This is what a certain unscrupulous commander said.