231222 is correct.
What you have there is the reflective part of skin map on the apache.
None of the importer scripts available is capable of dealing with importing textures in a proper way. Because the Abjab importer (can import animations) is an encrypted script and the people who possess the non encrypted version are unwilling to share the code, there is sadly no way of improving on the script.
There is no way you can force Gmax to read *.dds files. Your only solution is to convert the *.dds file into *.tga.