4B material entry count MC
4B offset after material entries / offset to textures
MC * material entry (36B)
{
  2B int type: 
      1=sky, trooper
      2=mat
  2B int 0, 1 (trooper, mat2)
  4B float (misc)
  4B float (1.0)
  4B int zero
  4B int 0x0A
  16B name
}
4B int texcount Tc
TC * texture entry 52B
{
  4B int pixel offset
  28B zero
  4B int palette offset
  4B int texname offset
  2B int width
  2B int height
  8B texture format {
    1B 0x01
    1B bits per pixel:
        -0: 4bit
        -1: 8bit
    1B subtype:
       -3 RGBA
       -4 greyscale
       -5 ? ov_rdir
    1B 0, 0x40, 0x80
    4B RGBA transparent color?
  }
}
TC * texture data
{
  16B texname = material name
  xB RGB palette
  xB pixels/samples
}