ucm · Unit · Rules
Guard
This Squad gains +2DF in CQBs. In addition, per Squad with two or more Guard Units in a CQB, one friendly Squad of your choosing without Guard gains +2DF for that CQB, assigned at the start of step 1 of that CQB. If both players have Units with Guard and/or Strong, the player without the Initiative selects all Squads to affect with these abilities first.
Source: DZC UCM Stat Cards · 260805 · p. 1 · ucm-special-rules