Was ex Military ATC, I suggest, the pilot on lobby have a callsign and only use that callsign, after that the phraseology is around that.
TWR → Tower (callsign Telos)
AC → Aircraft (callsign Eagle01)
RWY → Runway
— Start example —
AC - Telos this is Eagle01 request engine start up;
TWR - Eagle01 you’re cleared to start up, request ready to taxi rwy 24R;
AC - Wilco
etc etc etc.
I can create a manual about that. With that all comms between ATC and AC is more cleaner.
I’m Communication Operator, from military too, and I can create a manual too for:
AC<->Inf
AC<->TACP/FAC
Inf<->Inf
etc etc
Best regards!