Two Worlds
  By Gun_Sgt_Hartman

Story:

Deep within the Black Mesa
Research Facility, scientists
had opened door ways to Xen.
Suddenly the labs were overrun
with millitary personel sent 
to silence the facility. In a
panic the scientists fled into
Xen. They then launched a 
counter attack, appearing from 
thin air to take the soldiers
off guard. The scientists were
able to take control of one lab,
but the soldiers regrouped,
and now a bloody war is waged
across two worlds.


Tips:

Use the teleporters to gain
access to the emeny base.

Enter the teleporters in large
groups to overwhelm the enemy.

Defend your Xen castle to prevent
the enemy from warping to your base.

The rollup doors to the connecting 
hallway cannot be opened from 
inside the hallway, only from the 
base side.

Use the rollup doors to escape
the emeny base quickly, Beware,
you'll need a teammate to open
your door from the other side.
Bind the phrase "Open the door"
to a key.