Only soldiers on a mission can support the squad?

By Krishakh, in XCOM: The Board Game

Another simple question.

Mission-supporting Asset Cards lik e :

-Holo Targeting

-Revive

-Run and Gun

-Battle Scanners

Can be used only by the soldiers assigned to a mission / base defense, but unassigned to the task ,

or
can be used by any soldier remained in the base ?

The first option gives more in-game depth, but is problematic (got to pay for more soldiers per mission).

Second option is good to the budget, but it not feels like a real mission.

Edited by Krishakh

They can ONLY be paid for by soldiers still on the reserve. It's covered in the rules somewhere under paying costs.

Edited by CommissarFeesh

Thanks, that's how we played it.