[search116]

Lets say I box my opponents squad in with rhinos, then I tanks shock the unit in the single open part of the box . If they pass there morale test technically they can't run away but what would happen to them

 

[DeathKlokk]

Everybody moves back to allow for 1" between enemy models. They don't just instantly die.

 

[The Boz]

Do they instantly die on a failed check?

 

[MJayC50]

If they are falling back and have to double back at any time to get to the board edge then they are removed from play yes

 

[don_mondo]

Lets say I box my opponents squad in with rhinos, then I tanks shock the unit in the single open part of the box . If they pass there morale test technically they can't run away but what would happen to them

They move the shortest possible distance. That might mean they lowcrawl under the tank that is 'shocking' them, it might mean they leap over one of the tanks forming the box. Reality is suspended and they get out of the way.

But yes, if they fail and are unable to fall back without doubling, sure, then they die.