Despite the flames burning all of the vines, the owners of the vines didn't flinch and mindlessly went through the fire. But that doesn't mean they are immune to it. The moment the flames touched their skins, they were immediately burned to crisp then it slowly turned to ashes.
But a dead body will always be one and thinking is no longer something it can do. The dead that walked into the fire slowly catches on fire. It is still moving for a while before it slowly falls on the ground while the fire burned it to crisp.
I targeted the vines first. With the fire, it will be easy to destroy them and they will lose their ability to fight. The vines are the ones that seemed dangerous.
Once the vines were burned, I take out my Piyavka machete and finished them all off. It took me a few seconds before I killed them all by cutting their heads off.
After the battle, the road is once again clear from the vines and the ones using them are no longer around.