Where is the Red Keycard?

One of the smaller maps in the series which is not a bad thing by any means. One tip for this map though... save your pipebombs whenever possible. Very fun map and highly recommended.

Oh. If you are referring to the Tiberius Station, where the forcefield is, you must deactivate it in the compartment where there is a combination switch set. The compartment is in the middle of the room where the earth portrait is (the one with the first aid small kits). Press the switch and the combinational switches will be revealed. Find the combination and the forcefield will be disabled.

yeah i made it to the second room already. thats where i'm stuck. its the room with the Terran Moonshaft logo on the wall.

Ok, in the first room just place the pipebomb in the conveyor belt and detonate it as it changes direction (you can use the screen to check when to blow it).
Now, in the second room, leave again a pipebomb in the conveyor belt, but this time wait around 25 or 30 seconds (after you are unable to see the pipebomb on the belt) before detonating it.
If done correctly it would destroy a wall on the other side of the room, to continue progress.

Although, if you want to have it easier to check the second pipebomb, shoot at the middle of the earth portrait (right in the middle, where the middle section of the image is on greyscale). A room will reveal itself opposite the portrait and there you can actually surveil the second pipebomb.

Hope this helps...

how do i get past the part where i send the pipe bomb on the coveyer to blow a hole in the wall? i'm at the room where the hallways are blocked off.

Excellent