It is currently not possible to switch uniform textures for the AAF officer (neither via setting hiddenselectionstextures[] in config, nor via setObjectTexture in-game), because it seems hiddenselections[] is not set correctly:

hiddenSelections[] = {"Camo","insignia"};

It works when you define a new class which inherits from I_officer_F and set hiddenSelections[] to:

hiddenSelections[] = {"Camo1","Camo2","insignia"};