Fire Marshalls and investigators are not the ones putting on bunker gear dragging hoses into burning buildings either. I wouldn't want to expose live ammo to extreme heat. If I had go go into a fire I would dump my firearm and extra mags before doing so.
I would think that to be enough hot to cook off a round would be more than enough to cook the firefighter, although I am not willing to be the guinea pig to prove my theory.
I have been in a few, and while there is nothing cool about bunker gear - if its hot enough to cook off anything, you've already lost.
I carry on the majority of the calls I run. As a volly, 90 percent of our runs are medicals not fires - we closed the year at around 200 calls. Having a gun has been a problem exactly 4 times, the other 196 it was not a necessary part of my kit but there have been at least a dozen where it was nice to know I had 14 230 on tap.
Of the 4 that were problematic, 2 involved responding to schools, and 2 involved jumping in the back of an ambulance and riding in with codes.
For the school calls I was able to use the nanovault in my truck before grabbing the engine. For the other 2, one I had another officer draw and take it back to the station for me (Hands were otherwise occupied) - not something I care to repeat. The other is best left undetailed.
When any govt, or church,says This you can't read, are forbidden to know, the result is tyranny and oppression. Little force is needed to control a man who has been hoodwinked; no force can control a free man, not the rack, bombs, not anything, you can't conquer a free man, at most you can kill him.