This event has been hashed over in the gun forums since the 'ole days of rec.guns.
I'm no expert, but I've read enough good material on this to see that many of the myths and misconceptions and conjectures about this incident have grown into legends and are bandied about as "truth" in these discussions.
To really learn as much as you can from open source material, forget about what you read in the forums and read the best of what's available without FBI insider access or LEO access to source material not available outside the LE community.
Start with Dean Speir over at
www.thegunzone.com and his pages on the FBI Miami gunfight. It's a good overall look at the fight and the aftermath. He also includes some FBI documents.
http://www.thegunzone.com/11april86.html
Then find Ayoob's complete "Ayoob Files" article. While later accounts suggest it contains some mistakes, my understanding is it is generally factually solid.
Then read Anderson's "Forensic Analysis of the Miami Gunfight", which is the book Tennesee Gentleman mentioned earlier in this thread. This approaches the subject from a medical perspective and describes the wounds received by the participants and includes a chronology of the fight. Once again, not a perfect source material, but a very good one. I understand Paladin Press now has a hard copy available. I have an earlier verson that I downloaded.
After that, get the redacted and declassified version of the official FBI report on the gunfight right from the FBI home page. It's on their FOIA page, IIRC.
While Dean Speir called the FBI report a "whitewash" in a forum post once, it *is* the official FBI report on the shootout and anyone who wants to learn more about the subject or try to talk authoratively about it should at least read the official report.
When you read through all that, and apply some critical thinking (Speir's favorite phrase), you'll get a better understanding of what happened and what went wrong and why so many internet rumors of what happened are so off-base.
For instance, someone here asked why the FBI agents here had .38 Special loads in their .357 Magnum revolvers. That's because the .38 Special was the official FBI load back then, except for a few agents who could carry 9mm's.
With that in mind it's interesting to note, as I think Speir pointed out originally, the FBI report mentions that two loaded speedloaders with .357 Magnum ammunition were found on the scene. No attempt is made in the report to tie them with any specific bad guy or FBI agent. When you ask yourself, "Why?" one possibility is that they were carried by an FBI agent as an unauthorized reload and that the writers of the report decided not to press the issue in the official record. (I'm not saying this is an official fact, just pointing out one possibility.)
Read through all that material while looking at everything with a critical eye and you may actually gain some insight.
Or, you could just argue the same half understood points on the internet again and again. Your choice.