I couldn't find any, I would like to see them if you have links? Maybe I just missed them...
Did you just fall for this?
"{Also there actually exist a few helpful FFA guides, that covers 2FFA.}" If you are planning on covering "everything" your guide will be massive. (the MH guide is 18 pages.) I would recommend focusing on a few maps and do 4FFAs, 6FFAs, and "Big" FFA's. (And maybe include a section on PM and 'diplolike' FFA's) Each FFA type gets its own map in the guide. Remember the guide goal don't have to be to cover everything. It only has to show some examples of how something can be done.
Edited 12/15/2015 05:41:00