Sorry I didn't say who they overthrew. It was Shao Kahn.Sorry to get you all confused

So wait I'm confused. This is a Shaolin Monk type adventure staring Kenshi?

If so then here's what I think.

1. Even for a prologue its too short. Elaborate on some things a little more, maybe explain the new squad a bit, go into minor detail of the fall of Raiden, or briefly dive into Kenshi’s hatred for Shang Tsung for blinding him.

2. I’m a believer in an opening attention grabber sentence. Something that will entice the reader to want to read on. Maybe something like this- The time has come for my quest to begin, the answer to will I survive eludes my mind. However unless I exact my vengeance for what that sorcerer took from me the continuation of my life is futile. And then go into the plot itself.

3. This is also just a personal preference, but when I’m telling a tale I don’t like to use words that I would use while I’m say, talking to my buddies. The only word in your story that seemed out of place to me was awhile, try something like some time, or maybe even something like- Many suns have risen and set since Shang Tsung and Quan Chi exacted their overthrow on the emperor of Outworld Shao Kahn.

4. Also establish a setting, I’m assuming this would take place in Outworld but it’s not clear whether it takes place there or not. Maybe something like- We must find them in the baron wastelands of Outworld, a place that fills the soul with terror and an all consuming dread. I think it would be neat if you were to turn the setting of Outworld into almost another enemy rather than just a place to do battle.

Overall it’s got potential, give it some work and it could be a great story. If you have questions or want advice just PM me and if I get any idea’s about your story that I think might help it I’ll give you a PM.

Keep it up though, I’m a big fan of Kenshi and an awesome fan-fic dedicated to him would be sweet.

OK, sorry I took long but here's the new reinvented prolouge
-------------------------------------------------------------------------------------------------------Greetings. I am Captain Kenshi. I was assigned by Lord Raiden to guard Earthrealm while he & the Extermination Squad went to the secret hideout of Quan Chi & Shang Tsung in Outworld. He only trusted me in the location of their hideout. It is in The Soulnado. He raised 5 adolesences when they were only 15 for 10 years and now entrusts them to me as the 2nd and 3rd Extermination Squad. Their names are Zeke,Li Mei,Terrik,Jansen, & Harlem. Now 5 months have past and we have decided to set out towards The Soulnado. We all have reasons to defeat Quan-Chi and Shang Tsung, but personally I think I have to be the one to kill them. I used to work as a servant to ShangTsung as he particapated in the last Mortal Kombat Tournament. He had my family's prized Musashi Iaito Sword which he had to slaughter my town to get to. One night he caught me running off with the sword and with his sorcery used a magic grab to snatch and slice my head off. He had only replaced my eyes with stones which I was rescued by Lord Raiden taught the Secret of Telekenisis by his followers. I was not able to retrieve my sword. Now we have not gotten far and still need to ind The Soulnado. I just hope to retrieve my sword and eyes.
-Kenshi

I thought you was gonna use more but hey.