Groups → Entities Relation

File in server/game/Groups	Includes file in server/game/Entities
Group.cpp	GameObject / GameObject.h
Group.cpp	Item / Item.h
Group.cpp	Pet / Pet.h
Group.cpp	Player / Player.h
Group.cpp	Object / Updates / UpdateData.h
Group.h	Object / Object.h
GroupMgr.h	Object / ObjectGuid.h