To spawn an actor in C++ you simply do this…
FVector location = FVector(*insert location here*);
FRotator rotate = FRotator(*insert rotation here*);
FActorSpawnParameters SpawnInfo;
spawnedActor = World->SpawnActor<AMyActor>(AMyActor::StaticClass(), location, rotate, SpawnInfo);
Note the fourth line
spawnedActor = World->SpawnActor<AMyActor>(AMyActor::StaticClass(), location, rotate, SpawnInfo);
This saves the newly spawned actor in a variable called spawnedActor. You don’t have to save the actor into a variable if you don’t think you’ll need to access it later on. Hope this helps!