Hey,
I copied it exactly.
SpawnFiendT1()<suspends>:void=
Transform:=FiendCreatureSpawnerT1.GetTransform()
Position:=Transform.Translation
BaseRotation:?rotation= option{MakeRotationFromYawPitchRollDegrees(0.0,0.0,0.0)}
FiendCreatureSpawnerT1.SpawnAt(Position,?Rotation:=BaseRotation)
But I still get the error
This function parameter expects a value of type tuple(vector3,?Rotation:?rotation = …), but this argument is an incompatible value of type tuple(vector3,?Rotation:?rotation).