If no other HQ choices are included in an Ork Dread Mob army then a Meka-dread must be the army's Warlord, and gains the following trait:
At the beginning of any of its own turns, the Meka-dread may choose to join any friendly Deff Dread Mob as long as it is within 4". The Meka-dread then couts as part of that vehicle squadron. It may choose to leave the squad at the start of any of it's subsequent turns.
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