Are there any gamepads that are recognized but unsupported?

Yes.

The following gamepads will be recognized by the game, but do not have enough buttons or analog controls to support all the possible in-game controls, meaning some in-game tasks will require the keyboard or mouse:

• Gravis Eliminator
• Gravis Gamepad Pro
• Gravis Xterminator
• iBuffalo SNES pad
• Logic 3
• Logitech Extreme 3D Pro
• Logitech Precision
• Logitech RumblePad
• Logitech RumblePad Cordless
• Macally Airstick
• Microsoft Sidewinder
• Microsoft Sidewinder Gamepad Pro
• Saitek P880
• Thrustmaster 2 in 1
• Thrustmaster Dual Analog 3.2