Before we can deal a decisive blow to the Brotherhood, we must first remove their Tiberium advantage. Use your MCV to build a mining station near Athens. This will attract Nod's attention and they will send forces from Egypt and Lybia to stop you. Eliminating one hundred twenty five Nod troops should be sufficient to take back Greece and ensure that the Brotherhood never threatens it again.
Be warned... on rare occasions we have noticed that the Tiberium-enhanced Nod hovercraft vessels will be able to move even on land! Don't be intimidated and push on towards victory if you see this strange phenomenon.