// ARCHIVE HEADER
  4 - Header (FZFF)
  4 - Directory Offset

// FILE DATA
  // for each file
    X - File Data (Compressed - ZLib)

// DIRECTORY
  4 - Decompressed Directory Length? (including Directory 1, 2, etc.)
  4 - Unknown

  4 - Length Of Compressed Directory 1 Data
  4 - Number Of Files in Directory 1 and 2
  4 - Directory Header Length (20)

  X - Compressed Directory 1 Data {
    // When Decompressed...

      // for each file
        4 - Filename Offset (relative to the start of Directory 2)
        4 - Unknown (8)
        4 - Unknown Offset (relative)
        4 - Unknown
        4 - Unknown (16384)

    }

  4 - Length Of Compressed Directory 1 Data
  4 - Unknown (1)
  4 - Decompressed Directory 2 Length?

  X - Compressed Directory 2 Data {
    // When Decompressed...

      // for each file
        X - Filename
        1 - null Filename Terminator

    }

  4 - Length Of Compressed Directory 3 Data
  4 - Number Of Files in Directory 3
  4 - Unknown (4)

  X - Compressed Directory 3 Data {
    // When Decompressed...

      // for each file
        4 - File Offset
    }