I got the chance to see this film in my native country - Singapore. It was based on an urban legend that every reservist knows about - The Charlie Company and the 3rd door bunk!! Google it, if you don't know!
The sense of pacing, shock tactics and non-linear story-telling worked well under the direction of Esan Sivalingam. His debut was City Sharks, an excellent comedy that has yet to have a DVD release.
I have actually been to the location where the film was shot and believe me - it's not as scary as it is portrayed on film!