Monsters in Black Plaque

[bgr]

umm can some1 help me
i am in the computer terminal room and there is a zombie thing chasing me i found two of the card things what do i do with them and how to i get away from that room?

Spoiler below!

Lure it to the room that you can close. Some air conditioned server room I think... there is a green switch besides the door, just push it