Similar to this question: Behemoth's unnerving and Fist's taunt
An Enclave force could easily have Frank Horrigan and a Deathclaw, which are both Unnerving. Does that mean that if a model attacks one of them, they take the -2 penalty because they aren’t shooting at the other one? And then if that model does any other action besides attacking one of those models they are at a -4 penalty?
Or is a model only affected by one Unnerving aura at a time?
Since Deathclaws aren’t Unique, a 1000 cap force could have 4 of them, which would be nuts. All attacks at any one DCs would be at a -6, and any other action would be at a -8…