Being on fire is a major inconvenience. The actual damage is negligible to most characters in the game I'm currently running, but the fact is a single autogun with fire bullets can panic an entire room of space marines (or force one to test agility ten-twenty times), regardless of whether they're immune to the damage. Vehicles can also be taken out simply by spamming them full of fire-bullets until the driver fails his test. This is not a fear (x) effect, so Fearless, Unshakable Faith and so on are useless. Shocking has similar problems, but stunning can be overcome with Iron Jaw and Frenzy, at least.
As far as I can determine, the only talent that makes you immune is the Rite of Pure Thought, which makes you immune to emotion-based effects, which is an extremely vague and broad category. Rite of Pure Thought also doesn't jive very well with 99.99% of character concepts and so never gets taken, at least in my group.
So, other than giving certain enemies specific homebrew traits to immunize them to an undignified, fiery death, how do you deal with excessive amounts of fire, and how do Flame weapons affect your games?
Edited by Magellan