This DLC is worse than the main game
I beat this entire DLC and I believe it is worse than the main game.
Here are the reasons why, which I have divided into numbered points:
1. The devil narrator character from the main game, the one who is constantly providing voice-over narration, and who did an excellent job at that, he is totally absent from this DLC.
2. Instead, voice-over narration is now provided by two new voice actors: one for the main character you play as in the DLC, a slave woman named Libertee, and the other by a character named Dr. Gorman.
Although the Dr. Gorman voice actor did a great job, I felt the Libertee voice actress did a horrible job. To me, her performance comes across like an amateur voice actress trying to imitate an American Southern accent, but not having the skill to do so authentically.
Therefore, the Libertee voice actress destroyed my immersion in the game because her voice performance is not believable.
3. In the main game, you have a Fate Trader shop, which allows you to buy the good unique weapons and talismans that you unlocked by accomplishing tasks within the main game's scenarios.
However, in this DLC, the Fate Trader shop is totally absent. Therefore, you have no ability to buy any of the good - and fun - unique weapons that are present in the main game.
This means that while playing the DLC, your characters are mostly stuck using crappy standard weapons, like the normal shotgun, which makes them weak and also not-fun to use.
Likewise, you also can't buy the great talismans from the main game, like the candle of the dead which greatly improves your characters' aim.
4. This DLC has you alternate between two different posses at various points, with many characters in each one, but it doesn't have enough missions for you to unlock all the cards.
So, your characters in the DLC will also be gimpy because you will only have a few cards unlocked, but you have to spread them around to many different characters, with not enough cards to go around.