Whats up with the Goons on Customs in PVE?

So if reset my PVE account and i completed the quest for Skier with the massenger and the locked container.

So i spawn at the railtracks behind green room and run to old gas go in and out suddenly knight and pipe sit there i didn't make a sound i didn't throw any nades but they just focus in as soon as you spawn that continuous for 2 hours straight wtf happen?

Also are the scavs with the new pimped out weapons (one had a Gl 25 and 1 an Ak with a PSO scope) really agressive and quick for anybody else?