Job transfer for all: Are the gunners weak? I have Dongfeng Sniper

Relived a new life, but came to another world.
Here, the game and the real world are integrated with each other. There are various powerful monsters and plane secret realms, and humans also have various professionals.
On the occasion of graduation, Wang Chen awakened as a professional gunner.
When everyone thought he was using ordinary guns, which might not even be able to break through monster defenses.
Little did he know that he had activated the Weapon Master System, unlocking unlimited firepower and artillery fire coverage at the beginning, easily killing various Boss-level monsters instantly.
And by completing system tasks, you can continue to obtain more powerful equipment.
[Star Destroyer Cannon] A weapon that does not belong in space, the unknown technology scares the enemy!
[Quantum Annihilation Cannon] A cyborg-style weapon capable of disintegrating everything into nothingness!