The ZSU-39 Tigris currently has the hull texture of the base BTR-k applied. See first picture for the big dark spot in front of the turret. The correct texture is armor_f_beta\apc_tracked_02\data\apc_tracked_02_ext_01_aa_hexarid_co.paa.
See the second picture for when I apply the above texture via setobjecttexture.
Big dark spot is gone! {F23067} {F23068}