[X] SAPPER/ASSASSIN - Hunt in the rear of enemy territory with your traps and ambush capabilities. Make the weak among their ranks fear going out alone and challenge relatively isolated worthy foes when you can with a direct ambush to sharpen your hunting abilities. Risker then just using your traps but if you successfully pull it off surely your growth will be more broad in nature.
[x] SAPPER - You stealthily take note of enemy movements. Install traps where you can. Harass the enemy. Bleed them by a thousand cuts. Make them paranoid of every discolored patch of bark.