To confuse an enemy, you’ll need to hold RB and press B. When confused, an enemy will temporarily turn green while the effect is active. If it wears off, do it again, until the two enemies resolve their fight. We did this on a couple of Bedlam Raiders, and it worked like a charm. However, the weaker the enemy, the quicker the fight will be over, so confusing a Stormtrooper is probably the way to go. Note that you can’t use confuse on droids at all, and you can’t use it on resistant enemies until you purchase the relevant Skill Tree upgrade.