I need help with the logic behidn MDT'S

I need help with the logic behidn MTD’S. All the team MDT’S are the same for fire/ems, police, dot. However, different calls via the phone in game go to different Team MDT’S. Can anyone help?

P.S If @Shawnyg is reading this. I am such a big fan of your ERLC game.

@Shawnyg I know you have done this in ERLC, and wondering if you could asisst me.