I am likely confusing my tactical game systems (ASL, BoB), but as I understand it, once marked with a Move or Fire marker, a unit cannot fire. So, if I have a unit marked Fire or Move, my opponent can move adjacent to my unit and then into Melee without me firing upon the unit, correct? I know...

I am new to the LnL Tactical Series. I received Heroes of Normandy and I am confused as to what the MMCs with 0 Inherent Fire Power do. Thanks.