Fighting the War, Fighting the War

One-Person Resistance War Stories with a System, No Joining a Group

I’m looking for books like "The Strongest Solo Combat System in the War of Resistance". The protagonist transmigrates to the era of the War of Resistance and gets a solo combat System! Instead of clashing head-on, they use clever tactics and sneak attacks to defeat the enemy. Antiaircraft cannons fire directly into enemy lines, and machine guns mow down the enemy like grass. A thrilling tale of fighting the invaders and writing history.