I read this in an online article, which sounded incorrect to me.
The Fighter takes his free attack and gets all the additional bonuses that come with Combat Superiority. Needless to say, my monsters get hit more often than not for taking this action. A hit inflicts damage and stops their movement. Then, as my standard action I charge away from the Fighter and attack someone else. Since the Fighter has already taken an opportunity attack against me I can now get away Scott free [sic].
As combat challenge is an immediate interrupt and not an opportunity attack, doesn't that mean you could make BOTH an opportunity attack and a combat challenge attack on the same target in the same turn?
I believe the way to avoid both attacks would instead be to shift (move action), provoking the combat challenge attack, and to attack the 2nd target, because I'd be out of range of the fighter's opportunity attack.
Is this correct, have I missed anything?