even if it's not
I have a cunning plan that cannot fail.
Daybreak Rules pg 14: Mission Cards and Activating Missions "character abilities and card abilities that affect skill checks do not affect skill checks on Mission Cards."
Does this mean Aaron Doral's drawback does not apply to Missions?
Doral's drawback is specifically mentioned as applying in the very next paragraph of the rulebook, so yes, it applies.
Daybreak rulebook wrote:
Effects or abilities that limit the number of cards that a player may contribute to a skill check (such as being in the “Brig,” being a Cylon player, or Aaron Doral’s “Vanity” negative ability) do limit the number of cards a player may contribute to skill checks on Mission Cards. (emphasis added)