Unfortunately not.
According to the Ludus Magna thread, it's tied to security and influence, but this is for R:TW, not M2:TW.
I am not sure if the lictors had a role on the battlefield. Roman generals weren't supposed to join the fighting anyway. Also, following this reasoning the Hellenistic kings should get a full complement of hetairos to accompany them. That would not be fair to the Romans.
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