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Surface Tension is the twelfth chapter of 
Half-Life.
Maps
The following .bsps comprise this chapter.
- c2a5
- c2a5a
- c2a5b
- c2a5c
- c2a5d
- c2a5e
- c2a5f
- c2a5g
- c2a5w
- c2a5x
Note:c2a5h through c2a5v don't exist in game files.
