Greetings.
After the battle with Hela and her army the forty sixth base had undergone a lot of modifications. In a short period of time it no longer had any trace of the old base, with a gigantic fortress taking its place.
The defenses were cranked up to the max and surveillance towers were placed every few miles to detect anything trying to come close.
The human to Valkyrie ratio was flipped as well. Though nothing was said about the Nephilim, many were quick to draw a connection between them and the Valkyries, and once it was known that Odin was a fugitive from the other world conspiracy theories that were so close to the truth started to spread.