Each Squad Affiliation card lists the specific characters that can be taken. For a squad to have a squad affiliation, more than half of its characters must share the same squad affiliation (that is, be listed on the same Squad Affiliation card). A squad may only have one squad affiliation. Squad Affiliation cards will be updated as new products become available. Updated cards may be found at AtomicMassGames.com/Rules
Some characters have Leadership ( ) abilities. These abilities may be used only if your squad is using the required affiliation. When building your squad, if it includes multiple characters with a Leadership ( ) ability for that affiliation, you may pick only one of those Leadership ( ) abilities to use for the game. Declare your choice after you have deployed your squad. [1]
An official PDF of the Affiliations List can be found at https://www.atomicmassgames.com/marvel/op