Leaders and Assault results

[cjsiam]

So... in the latest attempt to be a successful Russian we had some big city fights....
One of the issues that arose that we could not find a resolution in 4th edition rules was

What happens when all the combat units are eliminated in an Assault hex--and the leaders are left alone?
Do you retreat immediately? Do you roll to retreat or be eliminated (6.71)?

IF the leaders chose to run off with fleeing Demoralized units--that would be one choice---but if they chose NOT
to leave--what is their status? 
How do you attack them alone---is it an Assault/Direct fire? Do they just run away?

Appreciate any insights.

cj

[cjsiam]

So... in the latest attempt to be a successful Russian we had some big city fights....
One of the issues that arose that we could not find a resolution in 4th edition rules was

What happens when all the combat units are eliminated in an Assault hex--and the leaders are left alone?
Do you retreat immediately? Do you roll to retreat or be eliminated (6.71)?

IF the leaders chose to run off with fleeing Demoralized units--that would be one choice---but if they chose NOT
to leave--what is their status? 
How do you attack them alone---is it an Assault/Direct fire? Do they just run away?

Appreciate any insights.

cj

Stormy Dan has reinforced the value of using the frigging Search box to point out this question was answered in 2015....and yes, it is 6.71 displacement.

thank you Mr. Dan.
sigh
cj