[Snake]

Snipe and Keyshot should both be at half efficiency if used for guns at minimum, or else the pew-pews may overshine the bows more than what they do right now.

Snake Shot usable with guns? It will be wonky due to the animation. I prefer a new gun skill that does the same thing but inflicts Lingering Damage.

Rogue could also get a Gun skill. Maybe something that makes you throw a trap/explosive at the enemy, and while they're 'debuffed' with said trap, all the damage they take one round will accumulate over and then explode on the next.