899 Comet Cannon!

After slaughtering this elite army in a second, Yue Zhong opened up the huge door and walked in.

When he entered, Yue Zhong was taken aback by what he saw, as he took in a cold breath and felt a chill in his heart, "This is a D-Grade Comet Cannon, they're actually hiding such a powerful trump card here!!"

In this huge armory, there was a 2km-long cannon, standing at a height of 300m, and it was engraved with numerous runes. It was connected with countless cables, powered by many nuclei of Type 6 and above. The main power source was a singular Type 9 Mutant Beast nucleus, as well as 8 Type 8 Beast nuclei. This was the strongest weapon of the Mech Kingdom, a D-Grade Comet Cannon.