You can pass or activate one of your Scout or Ambusher units.
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What happens when it is my turn and I don’t have units on the battlefield (for example, they are Scout or Ambusher)?
You can pass or activate one of your Scout or Ambusher units.
What happens if in the middle of a round a company runs out of units on the table (is it scored at the end of the round? Or is it cut off there as is?)
It is scored at the end of the round. You will have to pass until it ends.
In case the effects of different skills, passive skills, command skills, or spells occur simultaneously, which one is applied first?
The player with the initiative decides.
It's your activation and you don't have any units you can legally activate. What do you do?
In this case you must pass.