Well, first of all, the FBI never said they were gathering statistics about "gunfights".
The much ballyhooed "statistics" about LE gunfights occurring at some 3/3/3, 4/5/5 or other round count/distance/time interval may occasionally be supported
anecdotally, at any particular arbitrary "local" level, but it's hardly some "hard & fast" set of numbers, let alone some "rule". (A hint of that can be glimpsed even back when the FBI described LE shooting incidents as being virtually "unique" in many disparate factors, individually, in their FTU's paper in the summer of '89,
Handgun Wounding Factors and Effectiveness. Basically, if it
can happen, it
will happen, somewhere, but you won't be able to predict it ... and you can easily "cherry pick" any number of specific incidents to support whatever viewpoint you may wish to support at any particular time.
)
Their LEOKA report pretty much does what it states it does, meaning it looks a number of specific aspects of reported incidents, received as submissions from agencies reporting officers killed and assaulted.
Now, when LE are able to attend one of the many on-the-road "field" LEOKA
classes, presented as part of the LEOKA program, they can hear a LOT of other details not dryly tabulated and stated in the annual LEOKA tables. These day long classes are free to LE/first responders, last time I looked (although I haven't had the inclination to look to attend another one after 2012).
What I personally found interesting in the one I attended was the discussion of some of the things they'd learned from interviewing convicted criminals who had assaulted and/or killed LE. One of the things discussed was what had been learned regarding whether/how criminals studied LE firearms training, or firearms training in general (videos, magazines, TV programs, etc), and whether/how they "practiced" their use of guns, marksmanship, etc. Time was also spent discussing what they'd learned of the mindset of criminals who were willing to confront LE, and other criminals, especially using force.