The San Andreas, Liberty City, Vice City, Manhunt I/II, Bullworth, and custom maps combined into one big map. With gang wars, shops, added (not replaced) vehicles, peds, and weapons (yes, you can modify added vehicles and buy added weapons in weapon stores) in the same style as if R* were to make an expansion for GTA: San Andreas.
This version is meant to be an update for the original 2.1 version which is outdated since. To install you will need to also download the default 2.1 version and then extract this patch into the same folder. Sorry for not updating the ModDB page and I haven't got around to uploading the 9 patches neither.