Identify front part of capsule with graphic

I have used the standard FPS controller from Unity3d for a basic game. I’ve added Photon to the solution for multi-player playing, and have used a capsule object as the enemy. I would like to identify the front part of the enemey (capsule) with one color/graphic, and the back part of the enemy (capsule) with another color/graphic. How would I go about this?

  1. create new material with diffuse shader
  2. attach this texture to material
  3. attach material to capsule