Are there any finger and toe nail morphs that provide realistic nails (instead of the perfectly manicured nails that all characters, including the default bases come with)? Having someone climbing through dirt with perfect nails kind of ruins the render. TIA
Morphs can only change the shape of the mesh, you'll need to modify the texture maps to add dirt, maybe https://www.daz3d.com/skin-effects-dirt-2-for-genesis-8-81-and-9-females will be useful to you. If you want to change the shape of the nails, I haven't seen such morphs, maybe you can make your own and import them into DAZ.
Try ripping some zombie texture off another character and Photoshop them over your other skin. Should be pretty easy. Or you could just cut and paste the texture in Daz, even easier.
Not sure if the zombies have nail morphs.