You should probably get updated on some current events before joining up.
Currently we have just about three factions. 2 of them are allied against the third.
The first two are StuCorp and the FBI, both having allied together after a broadcast turned the public population of LA against meta-humans, and the third faction is Aperture which has been revealed to be where the broadcast originated from and are the antagonists for the current arc.
The Broadcast led to metas becoming hated among the civilian population of LA, and the situation worsened after a meta killed a whole lot of protesters this one time and then disappeared. Currently, almost all metas are in hiding including all of our PCs technically.
On Aperture's side, we have about 5 PCs, in StuCorp we have maybe 5 active PCs, and in the FBI we have approximately 4 PCs except the FBI isn't currently doing very much.
There are two separate teams in the Aperture metas and one mad scientist lady with her army of super mutants. One of the teams is a bodyguard-special asset team, and the other is a sort of a stealth team, with one illusionist and one dream person.
All 5 active StuCorp PCs are currently in a conference to decide how to raid Aperture's super-prison but a few characters have to be killed off so the meeting is getting raided instead.
That's just about all that's really happening, if that helps a bit.