The sound of the Gatling machine gun was unique; the firing rate was so high it didn't even sound like gunfire anymore, but rather a huge, continuous, particularly loud noise.
But when Feng Biao opened fire, intermittent cannon blasts immediately mixed in with the continuous gunfire.
It was Gao Yi's first time hearing cannon fire from such a close distance.
23mm caliber, it was indeed a cannon.
Loud and dull—it even felt as though the shockwave from the cannonball exiting the barrel was changing the air, making his heart beat with the sounds.
Boom, boom—each sound intensely stimulating the eardrums.
Gao Yi couldn't help but stop firing.
The cannonball pierced the armored vehicle, and immediately a bright flash erupted inside; the flash penetrated the body of the vehicle, creating an even larger flash on the other side.