[Deja Vu]

Firthrower is glitched.
The only attack you can make is 'Sub-Attack', which seems to have the description of a basic Sub-Attack: *"Perform a basic Sub-Attack (). This attack can miss and critically hit, and also uses 1 durability. If your durability is 0, the weapon will be weaker, and much more likely to miss."*

Upon using this Sub-Attack, it performs an explosion animation with no damage. If you get the Special Attack 1 trait, you can use headshot which seems to function normally.

I have so far had the ability to replicate this bug 100% of the time, and have tried re-logging, respec-ing my traits, once with Special Attack 1 trait and once without.

Edit: Race is Mech: Agile-Type

[Neus]

This shoulda been corrected in 2.03b.