The way this airspace is set up is very unusual where there is only about 150 feet of separation between the approach and the helicopter route. Normally there would be at least 500 feet and more likely 1000 feet of separation. Also the controller did call out the traffic but he wasn’t that specific about where it was, just that it was a CRJ, which you can’t even really tell at night. He also didn’t call out the traffic to the jet. To be fair to the controller though, he was working two positions simultaneously due to a controller shortage. He might have been able to be more helpful if he wasn’t so busy that night.