The way we train it on A320 (seems the same procedure):
-FO follows the ECAM and shuts down the second engine.
-AC goes dark and the Evacuation checklist is being completed which is initially a continuation of the Eng Fire on ground checklist together with confirmation of some memory items.
-We push all Fire Pb's and discharge all agents (Eng and APU. Only Agent 1 in fact, since AC is only powered by the batteries.)
-Last item of the checklist: 2 options: Evacuation required or Evacuation not required.
In case it's not required, we are stuck on the runway and need towing.
I don't know if our Evacuation checklist is a company procedure or an Airbus procedure. I guess company, since I can't find it in the FCOM.
Like 9.G said, follow the FCTM. And in case of doubt ask your training department.