Considering how there are two combat skills for melee weapons and unarmed, I'm guessing that this is not the era where guns rule supreme. Although in terms of ranged combat, Hunter is best. Personally I like the Hunter+Archer combo: +0 str, +1 dex, +1 con, +1 wis, +1 int, +0 cha, fire mutability, ranged weapon 1, stealth 1, traps 1. It's a well-rounded character with solid brains and skills.
Then again I'm also partial to Slumrat+Fish, which takes the water mutability (+0 str, +2 dex, +1 con, +1 wis, +0 int, +0 cha, water mutability, intimidate 1, sleight of hand 1, stealth 1).