As for the story concept, a real-life sharpshooter hits a wall in the virtual world. The protagonist, Wang Jie, has a down-to-earth name that suits the plainspoken nature of a retired soldier. I can think of a few possible directions:
Focus on his growth: After getting frustrated at an internet cafe, the protagonist uses military thinking to understand the game mechanics anew. He turns recoil control into precise mouse handling and works tactical movement into his game sense. Eventually, he shocks the esports world with real battlefield tactics on the international stage.
The protagonist discovers a flaw in the game engine and uses his firearms knowledge to modify his equipment, such as replacing an ordinary mouse with a military-grade sensor. The tournament organizers then accuse him of cheating, and he has to prove his skill comes from talent rather than superior equipment.
The game features battle scenarios eerily similar to the protagonist's real experiences. He suspects the game company of stealing military secrets, and the esports competition becomes cover for an investigation into the truth.
