C2420 It's too Early to be Happy

Longmen Mountain.

The war was still raging. On top of the city wall, the firing speed of the Tianzun Cannon had dropped by a lot. It was not because they were tired, but because the Tianzun Cannon had been used for too long and the heat was too high, they had to slow down. Otherwise, if the heat dissipation was not timely, the barrel would explode.

On the battlefield