Weapon Reticle:  Blender MultiTexture Materials

15.  Add a Controller

For this example I'm using the AND Controller.

Buttons Window menu >> Logic (F4)

16.  Add an Add Overlay Scene Actuator

Buttons Window menu >> Logic (F4)
Add Overlay Scene
SCE:  Name of Overlay scene holding weapon reticle

17.  Connect the Sensor >> Controller >> Actuator

Buttons Window menu >> Logic (F4)
Pull wire from brass bump to brass dimple

18.  Start Game Engine

P key
User Preference menu >> Game >> Start Game   

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