Cool characters. Shikaru is the guy to accept you.
If you're not sure how to enter, here's the options:

Kilo point: Vampire HQ, currently under attack from an army of flying droids. they collect blood and couse mayhem.
Rhyss, Magnus and Mithias are there I think.

SOLDIER HQ: in the woods, plotting.
Cedric is about to enter there, I think some others have a few characters in there that haven't done things in a while. Not sure. At least Shikaru's Matt is in charge there I believe.

Elsewhere in the woods or mountains. It's cold and snowy out today so pack a jacket and an extra lunch

If you want Martin will approach you, no telling what he'll do. He won't kill you though, hehe.