In the level 'Military Base', there are several cargo containers lying around in stacks. The red ones have a label stripe on the side - called 'Universal Exports'.
This is the fake company James Bond uses as a cover in the James Bond Films!
Go to the Trainstation level. There is a board somewhere with Train destinations, like Paris, Berlin, Moscow and so on. There is also some funny text. At Berlin it says "Deutchland alles", at Paris it says "Viva la France", and at Essen it says "Gute... more