Since the TOI has begun using flame tanks to burn out tyranors tunnels the queen has begun augmenting the Immunal-mucus coating (https://scratch.mit.edu/projects/1393752768/) of the tremor Tyranor and have been adding fire retardent compounds into the slime, this make tremor tyranors temporarily immune to flames for a few dozen seconds before needing fresh slime. this gives them enough time to make a counter attack. also as they dig this slime covers the walls of the tunnels making them inflammable also. LITTLE FACT tremor Tyranor tunnels have very little oxygen, to the point where tremor tyranors have to hold their breath for hours before tunneling up to take a quick breath. this environment already makes flames have very hard time igniting but with all of this it'll be nigh impossible