Finding battle plans?

I've been trying to find battle plans from Orks as part of the campaign for a while now.
Every battle against Orks I've been fighting has flagships with no battle plans.
At this point the Orks no longer possess any systems.

Am I doing something wrong?

@squirem

Same problem here, that is... if you have the necron campaign in mind.

@kalin I suspect that battle plans aren't random appearances per battle. Rather, the Orks have to be previously established in the system.