Game Knights Doubles

this is a doubles event

Each teammate to bring a 1,000-point Incursion army. Together, the two players form a single team army. You cannot duplicate "once per army" restrictions—such as Epic Heroes or Enhancements—across the team's combined force.

Army Faction Limitations: Teammates' armies must belong to the same overarching alliance (Imperium, Chaos, or Xenos)

Force Dispositions: Teams can choose to run a Unified Force (both players share the same specific faction, e.g., both play Space Marines) or a Force of Convenience (different factions from the same alliance, e.g., Space Marines and Imperial Guard). Unified Forces allow units to benefit from each other's faction-specific rules and stratagems, whereas Forces of Convenience keep armies strictly separate.

Command Points: Command Points (CP) and Stratagems can be used differently depending on the tournament's selected mission setup, but generally, global abilities are locked per phase or turn across the entire team rather than per player.

Terrain and Missions: All terrain placement rules and Primary Missions are dictated by the 11th Edition Warhammer Event Companion and Chapter Approved decks

https://assets.warhammer-community.com/eng_12-06_warhammer40000_doubles_event_companion-xyapytrwkz-9a6fljmnob.pdf