I'm a DM, so I have good tactics. I hope.
But tactics seem simple to me.
Humanoid bandits...Hide, ambush the party. Light the oil slick the party stumbled into. Fire arrows into the fire.
Monsters...Hide, spank the guy in front/back with special attack (ghoul touch, improved grab, etc.)
Harry the party with ranged attacks, run away.
If half the monster's group is disabled in the first two rounds, run away.
Disrupt the party, grab the gizmo and get out. Separate an individual, disable them, and rinse, lather, repeat.