I was just going to add the dents and scratches to my texture. After I was talking about this though someone told me I should do it in zBrush..is there a reason I shouldnt do it this way?

I made the base mesh in Maya just adding the details in Z please let me know if i should be doing all of this in my textures as I need to have themm all done by tomorrow afternoon. Would rather start working on the textures if I can