Tu parles du CID je pense du coup la règle c'est ça :
Theme Force changes:
In this CID cycle we are testing a new core rules change that will change the way Theme Forces work. In addition to the models that are allowed in a Theme Force, a player may take one Mercenary/Minion Solo, Unit and Battle Engine. The goal for this change is to allow for deeper list building inside of themes lists by allowing for more options while remaining thematic. The Mercenary/Minion model must be able to work for the faction taking it, it doesn't become a free-for-all. Additionally, please note that with the current wording that Mercenary and Minion theme forces will remain unchanged with this rule and will not be able to include these additional models types.
In addition to the models listed in the Army Composition section of each theme force, a non-Mercenary, non-Minion army made using a theme force can include up to one Mercenary solo, unit, and battle engine, including Mercenary models/units with the Partisan rule. The Mercenary models/units must work the army’s Faction.
If a Mercenary model that can control warjacks or warbeasts is included in an army, the warjacks and warbeasts that model controls can also be included.
For example, if the Mercenary solo Gastone Crosse is included in an army made using a theme force, the army can also include Mercenary warjacks controlled by Crosse.
mais t'es pas au bon endroit.