Delta: I'm Wearing Nothing!

[The introduction is weak, please move to the main text! ! ! Beacon is the light of war! Zhang Feng, a serious addict of the Delta game, accidentally traveled to another world and was selected by GTI to become a trainee operator. System? No! Sign in? Neither! Add some dark blue? Not even that! You can only rely on yourself. Fortunately, he still has memories of his previous life. No. 0 Dam, Longbow Valley, Bakshi, Space Base... "What? You sell a broken tank model for two million?! Are you crazy or am I crazy?!" "Don't talk nonsense if you don't understand. This is a high-tech product from another world. It is reproduced one-to-one based on a real tank. Is it expensive for me to sell it for two million?" "It's not expensive at all!" "Then what if you sell me a bottle of Coke for ten thousand?" "What's Coca-Cola? This is obviously a high-end drink from another world. If you take it back and come up with a recipe, you can make a lot of money easily. Even if you are in trouble, you can still research materials from another world..." (Also known as: [Realistic Delta: How do you let me play without cheating?] [National Delta: Liu Taopuba, do you still let others play!])