INSTALLATION:
Copy seven .bsp files in the Half-Life\valve\maps folder
Copy five .nod files in the Half-Life\valve\graphs folder

HOW TO RUN:
Run Half-Life with a console.
Enter "map beast1a"

GOAL:
Destroy a monster (Big Momma/Gonarch) by first flooding a room with water and then by  electrocuting the monster with high voltage controls. Escape with a scientist located at the end of a damaged catwalk. You must position a crate on which the scientist can walk because the scientist will not jump across large spans. You must destroy all monsters before escaping with the scientist on a train.