Reclamation of Aiur by Sharandar
Playthrough: https://www.youtube.com/playlist?list=PLACFHAM2MlxM42mwBp6ncB3G6IfSv4nMc

Following the death of the Overmind and the loss of Aiur, protoss refugees do battle with Zerg on Shakuras and UED on Braxis, presumably because it will eventually help them reclaim Aiur.

Notes:
7 playable missions, two cutscenes (intro and epilogue), mod file compatible with version 1.16.1, fully voice-acted
In map 2, "Resilience", the opening cutscene sometimes hangs up, though this should be fixed as of 7 Oct 2018
In map 7, "The Upper Hand", your ghost hero must not be in a transport or bunker or the ending cutscene will not play correctly
Map 8, "The Quelling", is a placeholder; the campaign's second part was never finished

Recommended only for players who have a soft spot for voice-acted custom content and are willing to put up with boring/frustrating mission design and occasional gamebreaking bugs.