Ok, so yesterday this happened:
A unit was in combat with another unit, head on, with a third unit about to charge it in the flank:
>> <<<<<<
>> <<<<<<
>> <<<<<<
> <<<<<<
> <<<<<<
^^^^^
^^^^^
Now as you can see, the large unit is about to get charged in the flank by a unit that can disrupt it's ranks. The question is, can it combat reform to face the new unit before it charges?
We ended up kinda coming up with two answers. Theoretically, if it has no command or characters, then yes, as no models are moving out of combat, just turning on the spot (which you are allowed to do in order to reform to face a unit that has flank charged it that turn, for example).
But it seemed like you would be unable to if you have command as they would physically have to move out of base to base with the original unit, hence breaking that rule.
Though now I think about it, even changing formation to face a unit that has flank charged you means that some rank and file guys will move out of base to base contact in order for your command to move in... which makes me wonder once more if the whole thing would actually be potentially legal.
Is it perhaps that the number of models in contact must remain the same, rather than the exact ones...
Anyways, this spawned much back and forth debate and no real iron clad consensus in the end.
Thoughts or helpful rules we might have missed?