To me the Easter Egg is the included U-Boat Missions. At least that's what it says on the box.
![Say What?](images/smilies/stunned.gif)
What missions? You would think UBI could come up with a few missions.
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Its more like they added on SH III career mode. Its a shame that we have to depend on others or fabricate our own missions. UBI is a bunch of pirates.