Special Forces ’Strongest Upgrade

When he woke up, Su Tu found himself in a parallel world. It was a world that was made up of many special forces movies and television shows!

Fortunately, as a transmigrator, Su Tu still had a system. No matter what he did, he could get a proficiency upgrade.

[System Notification: Physical Skill Proficiency 1]

[Casually shooting, System Notification: Firearm Proficiency 1]

He stood in a random queue and the system notified him: Rank Mastery Skill Proficiency 1

……

Su Tu: "???"