This is the Nazi Flag ( SS ), and the Swastikas is forbidden in Germany. Activision and many others make special version for our german friends, without Swastikas. They are a lot of players too. So if you want your maps played all over the world, please think about putting something else to replace that sign and/or flag. Look at RaveKniven's Bismarck GE version. It will gives you some idea of replacement.
For some strange reason, the German Government banned the design. Now, I say "For some strange reason" because, unknown to a lot of people, but the Swastica was never created by the Nazis... It wasn't even created by a German. Some of the earliest Swastica designs were descovery on Shields used by Skirmish Infantry on the Italian border dating back to the Bronze age.
The Swastica is used in the Hindu religion as well with a dot in each of the four sections (I think this represents the 4 sessions or Life or something similar... Unsure though).
It was used in the Norse religion, both styles, (Clockwise and Counter-Clockwise) as the Moon and Sun symbols. In Ireland, a Laundry company was called Swastica's Laundrumat.
Even in the USA, Native American such as the Apache used the Swastica in their decorational patterns, but due to the trouble in Europe, they gathered together and signed a treaty to never use the symbol again as it was being used as a symbol of evil.
For one group of peoples greed and insane lust for power, a simple design consisting of eight (8) small lines, is now banned throughout an entire nation and is frowned upon by the world...
Good post Capt.Com. Some interesting points made. A definate "Need-to-Read" for mappers.