This is the specifications for the archive file which is handled by the Game Extractor plugin Archive_MEGA_MEGA.

Endian Order:Little Endian
Compression:Unknown
Encryption:Unknown


This format is used by the following Games:
Enemy Territory: Quake Wars *.mega


This is the format specification information:
 
// ARCHIVE HEADER (56 bytes)
  4 - Header (MEGA)
  4 - Unknown (9)
  4 - Unknown (32768)
  4 - Unknown (1)
  4 - Unknown (1)
  4 - Unknown (1)
  4 - Unknown (3)
  4 - Unknown (1)
  4 - Unknown (1)
  4 - Unknown
  4 - Unknown
  4 - Unknown
  4 - Unknown
  4 - Unknown

// DIRECTORY
  // for each file
    4 - File Offset
    4 - File Length

// FILE DATA
  // for each file
    X - File Data (Unknown Compression/Encryption)
    X - null Padding to a multiple of 4? bytes


Game Extractor is able to read files of this type, as well as files from thousands of other games. To give it a try, download Game Extractor (Basic Version) for free, and see what it can do.

For further information on this format, refer to the source code on our GitHub repository.