I Turned Down Tsinghua's Graduate Recommendation and Became an Officer

(A solemn declaration: this book is absolutely not ghostwritten by a studio. I swear!) Reborn in 2001, he gives up his guaranteed place at Tsinghua University from the start. Xu Ye, a once-unknown mercenary who had missiles rain down on him, gains the Military Grind System! Great ministers rise from local government, and fierce generals emerge from the ranks! In my previous life, I died for another country. In this life, I will become a loyal guardian of my motherland! The challenge begins with boot camp!