Lord of Black Technology from Another World

The lord Yang Ting is really miserable, even if his territory is located in a battleground between orcs, dwarves, elves, ratmen, dragons and other races. As a result, the country was destroyed, leaving him as a small lord alone to face the various races that were eyeing him. However, Yang Ting said that he was right, and his technology could defeat all monsters and monsters. Line infantry armed with armor-piercing rifles can fight against elven archers, killing large swaths of them like wheat. Tanks burning energy crystals can beat extremely ferocious orcs to the point where they cower in the valley and dare not come out. As for the giant dragon or something, do you want to know about the large-caliber urban defense ground-based cannon? Let these foreign natives see the power of black technology! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.