Battlefield 4’s Dragon Valley map hides a stupidly complicated Easter egg

You’ll need to work hard to crack this Easter egg.

Gamers have discovered the latest Battlefield 4 Easter egg, its trail hidden across two of the first-person shooter’s sprawling multiplayer maps, including the recently released Dragon Valley. Developer DICE has a history of hiding secret features and rewards in Battlefield 4, but this latest treasure hunt is surely the most complicated yet.