been doing some searches on this,
i keep finding this from the
Faq, which i can't find
Each Infantry Platoon is deployed in place of a single unit in missions that limit the number units that can be deployed. In addition when making a reserve or outflanking roll, roll once for the whole Infantry Platoon. Any units in reserve that are embarked upon a non-dedicated transport are instead rolled for separately.
is there a rule somewhere that can confirm this ?