More sounds/random sounds isn’t necessarily better. They just give more of a cue that it’s a decoy.
In fact an experienced team can differentiate between the pred and a decoy by just listening to the intervals between clicks.
My idea is that decoys should mimic certain sounds in real time as the predator makes them.
Examples: when the predator clicks the decoys do an exact imitation too.
When the pred activates/deactivates cloak and/or Vision, the decoys do as well.
Killing/Eating pigs yes.
We don’t need decoys playing fireteam sounds, AI sounds or whatever else.
We don’t need them playing unnecessary sounds that ultimately tell the Fireteam: “hey I’m a decoy. Don’t listen to me. The pred is somewhere else”