Ragnor loads a few shells into his shotgun, and everyone moves forward into position.  Ragnor and Phallon look around the corner and down a 10 meter hallway that then turns to the left.  It is lit by glow panels in the ceiling.  (Awareness rolls) There are some bloody streaks on the floor, as well as some bloody humanoid boot prints.  Phallon can see that whoever made them was walking down the hall, heading deeper into the base.  Arvak stands just next to Phallon with his hammer ready to strike.  Zeebo (unable to get to the corner and not wanting to walk into the arc of Arvak’s hammer swing) moves up the center, bow ready to fire.

The planar portal is gone.  Arvak’s precognition will now be functional.

What do you do?  It may be helpful to give me a default marching order for halls & what you do at the next corner…