The heart of any repack is the world database. With a free tool like HeidisSQL, you can:
: Formerly a popular choice for post-Cataclysm content, though users often note that it requires more manual "fixing" of broken quests compared to more modern repacks. Core Setup Requirements Wow 5.4.8 Repack
The community is smaller than 5 years ago, but it’s loyal. If you want pristine MoP, the repack is still the only game in town. The heart of any repack is the world database
In short: It’s the "plug-and-play" of WoW emulation. Wow 5.4.8 Repack