It can be helpful both from "getting it out of the mind" and not forgetting details to write down extensive notes in time order if possible on what they actually did to you. When you were notified of job, how much info and support given in the time period until camp, what was not provided yet needed, stress situations such as inadequate numbers of helpers, etc. Just how many problems erupted and when.
Put in some kind of bulleted list so you can easily find them (rather than a long narrative). Dates and some times helpful. A couple of references to requirements of your old supervisor such as mandated emails is also good. Make sure any surprises along the way are listed. Any lack of cooperation from others where it was requested helpful also.
Then make a nice list of the actions you would have taken as an experienced person from the beginning on organization and duties needed prior to start of any camp. Star any that appear to not have been done by the other group.
The whole process is to clarify what you might need to refer to in any communications.