Linking FPS Rig into another .blend; FPS camera question

I was finally able to link in my FPS rig correctly, however, I cannot seem to switch to the FPS Rig’s camera when in game. The camera is not even selectable since the rig is linked. How do I switch to the FPS Rig’s camera for gameplay?

Several options:

A) you let the rig camera switch to itself (logic at the rig camera)
B) you use a Python controller to
B1) set the camera at the scene/camera actuator
B2) switch to the camera via code

Thank You Monster, I will try these options.