[FlamingCobra]

How would I set up a SEXP so two different pilots said the same message at the same time?

[ssmit132]

Unless they're to have audio as well (in which case you could have only one audio file with both people talking), would send-message-list with a very small delay work (e.g. 1 millisecond)? You may have to remove the head-ani from one of them to do that.

[LoneKnight]

There needs to be some sort of delay in the messages. If you want the two pilots to say the same thing, you could always edit the audio so they happen together, then have one of the pilot messages use that audio clip. The effect would be that they are happening at the same time.