Some keywords have a numerical value, presented as 'X' in the Keyword Glossary. These keywords stack with themselves and can be any type of keyword. If a unit gains multiple instances of a keyword with a numerical value, add those values together.For example, Stormtroopers have the Precise 1 keyword on their Unit Card. If they equip the Targeting Scopes gear upgrade, which gives them Precise 1, they will have Prceise 2.