I have one simple question for this who use this mod.

Are firelurks can breathe fire like fireants?

Because I did encounter them but they fight like normal mirelurks using claws.

Author of mentioned that they use fire breath.

I am just curious if this works or not.

I've seen them do it. But they don't do it all the time, in my experience. You may have to fight several before you see the attack.

They are?

I've been playing with MMM since it was released, and i never remember seeing that.

I wonder if maybe some of my mods might have conflict with mmm. I use fwe, weapon mod kits and corresponding foip patches.