The f-5e3_tigerii_textures includes new roughmets. Adding the new roughmets will pass through Integrity Check due to replacing default files
unzip the f-5e3_tiger_ii_textures and put these dds in DCS World\CoreMods\aircraft\F-5E\Textures\f-5e3_tiger_II_textures

Add textures in DCS World OpenBeta\CoreMods\aircraft\F-5E\Liveries\F-5E-3