Goofed roll on base damage (says invalid roll because I tried to multiply it). Will post 2nd post for correction. But here’s the sneak attack and fire damage.
Critical Hit Dmg; Sneak Attack Dmg; Fire Damage (half save) : (1D4+1)X2 = INVALID ROLL = -1
4D6 = [1, 6, 1, 4] = 12
3D6 = [4, 5, 1] = 10