Senario: Lets say if I were to create Batman in a bat suit, and then Bruce Wayne in a Tux, how can I get the EXACT face onto the other zbrush model?
-Is there a way to perserve a face to use for a same character but on a different body on a different zbrush Model?
Thanks for helping 
Append the face to the model that you want it copied onto. Position it so that the two faces are as closely aligned as possible. Now you can use a combination of Tool>SubTool>Project all with the ZProject brush to copy from one face to the other.
Another approach is to drop the destination model using Projection Master. Then draw the source face and scale/move/rotate it so that it’s positioned just barely in front of the pixols on the canvas. Pick up the model again with deformation active in PM. Then use the sculpting brushes (like smooth) to clean up the edges.