I've got few suggestions:
Adding Point Lookout Tribals and maybe swampfolks to the list of enemies affected by Sneering Imperialist perk.
On the completion of A Meeting of a Minds receive Swing For The Fences perk if sided with Desmond (new perk image needed as current icon shows Vault Boy fighting unarmed)
Add back the cut content and put back the book Marsh Hunting Tips Vol IV: Mirelurks. The best location would be library in Blackhall Manor - reading the book would give Mirelurk Ecology perk (perks needs fixing and maybe new icon to go with it). The perk would affect Mirelurks, Mirelurk Hunters, Mirelurk Kings, Nukalurks, Swamplurks and possibly Lakelurks from FNV.