The Uvs for all the props were done in Maya, in order to keep the number of textures and subsquent Materials down as much as possible, i tried to fit as many props within one tile of UVs while also trying to not sacrifice resolution for the resulting texture. These props were color coded to more easily discern the groupings.

The props within a group were exported together into Zbrush and paired with their high poly counterparts, the reason for this, was to make sure they were overlapping with each other when exported.

The file with the low poly version was imported into Substance 3D Painter and baked with the high poly version, after which the blank props were given their "personality" and some further details wer added.