I don't think Darren Modok was featured in the comics. Usually, characters like this don't just pop up without notice or a lot of buzz among comic fans.
Since I don't know the details about this Jennifer Burrows, it could be that she is an ordinary person with a story that is only known to her family and friends, or she could be someone who has made an impact in a specific local community, in her job, or in some personal achievement. Without more information, it's difficult to say her real story.
In StarCraft 2, the three bug nests were located at:
1. The surface of Aiur: The first hive is located on the surface of Aiur, the location chosen by the Zerg to establish their base.
2. The center of the Möbius Galaxy: The second hive is located in the center of the Möbius Galaxy. It is a dark, deep cave system that is considered to be another headquarters of the Zerg.
3. The surface of planet Keha: The third nest is located on the surface of planet Keha, which is also one of the main habitat of the Zergs. This cave was huge and was made up of countless tunnels and passageways. It was where the Zergs conducted advanced technology and biological experiments.
I haven't heard about the 'Slave Named Burrows Story' before. It might be a local or relatively unknown story. Maybe it's about the life of a slave named Burrows, his experiences, struggles, and how he coped with the hardships of slavery. But without more information, it's hard to say more.