The Lynx was intended to be the European Union's transport helicopter. Although the vehicle itself was removed, the following line can be found in the localization mappack files of Battlefield 2:
KILLMESSAGE_VEHICLE_Lynx Lynx AH-7
In addition, there are helipads which can be found outside Great Wall's borders, intended for the cut 64-player version of that map. It could also be on the 16 player variant of the map as the PLA has a Type 95 SPAAA but there are no aircraft to use against it.