I am happy with this version

mission/system/objects/AcsSubsystem.cpp

@@ -81,3 +81,9 @@ void AcsSubsystem::handleEventMessages() {
     }
   }
 }
+
+void AcsSubsystem::announceMode(bool recursive) {
+  const char* modeStr = acs::getModeStr(static_cast<acs::AcsMode>(mode));
+  sif::info << "ACS subsystem is now in " << modeStr << " mode" << std::endl;
+  return Subsystem::announceMode(recursive);
+}