Noodlekeeper's page

During our play through of the Dead Suns Adventure Path, our operative rolled a crit on a creature while we were in a vacuum. Now, we checked the book to see if Burning would work while in said vacuum, and the book says nothing.
So, I would like to know peoples opinions on how this might work. To continue the campaign, we decided that rolling 1d4 to determine how many rounds it lasts, but I'm just not sure if that is balanced or not.

My GM's are starting up a new Pure Steam based campaign set in North America during the Gold Rush era. I am playing a Ranger, and I am working on making an archetype for using guns and wanted to see what people thought about it, or if they had any suggestions.

Have Gun:
At 1st level, the Gunner gains the Amateur Gunslinger feat and Gunsmithing as bonus feats. She also gains a battered gun identical to the one gained by the Gunslinger.
This ability replaces Wild Empathy

Will Travel:
Starting at 4th lvl, and every 3 lvls after, the Gunner can select one Deed from the Gunslinger deeds list. The Gunner must meet the level requirement for deeds selected.
This ability replaces Spells

Natural Grit:
Starting at 11th lvl, the Gunner gains a pool of Grit equal to their Wisdom Modifier per day + the number of deeds she has. She can regain her grit as normal, but it can not exceed this maximum.
This ability replaces Quarry and Improved Quarry.