Except, it is a good tactic when it lets you always have flank. Even on ranged attackers.
And rangers and warlocks get a +1 to ranged attacks this way too.
How does this relate to the specific 'tactic' described above.
What you describe is simply one of the major advantages of having a fighter marking your foe - if you move to gain flanking (or for other tactical reason) it must either let you make the move or it must let the fighter whack it.
But that isn't the the same thing as the tactic described above - taking extra movements (or doing a 'move 1' rather than a 'shift 1') for the purpose of triggering OAs and thus Fighter combat challenge. In fact - the simplest basic case used in the OP actually shows a character moving OUT OF flanking position to 'draw' an OA. And if I were playing an intelligent creature I'd probably be happy to let him do it with a fighter right there.
Or more likely, I'd take the OA, and then on my turn I'd hit the fighter and then shift myself (now safe from the Combat Challenge) into a position where the two characters could no longer gain flanking on me the next round (and thank the other character for moving away from me and making that move easier). Or maybe instead of attacking I'd even take a shift and standard-> move and get out of that position entirely to somewhere better suited to my tactics, somewhere I can't be flanked at all or where I can give one of the other creatures combat advantage - since the players were so kind as to let me out an otherwise bad tactical situation.
Which the essential weakness of this tactic. It doesn't recommend using FIghter's Combat Challenge to control the battlefield. Rather, it appears to recommend making otherwise poor tactical moves for the express purpose of drawing OAs. And this only works if the creature actually takes those OAs. Otherwise you are just making bad tactical moves for no gain.
Carl
Last edited: