-A greener world with living trees and no lingering fallout (except in certain quest areas)
-New destruction effects such as being able to shoot a box of ammo with explosive results. Not exactly realistic, but it is very fun and allows for creative traps (mini-nuke + frag mine = awesome)
-Much more realistic vehicle destruction system (no more nuclear cars that can be set off with a few shots)
-Support for the Point Lookout DLC.
-A tweaked movement system (you move faster)
-Bullet Casings stay for much longer.
-New bullet casing models thanks to "odin_ml" and his Shells and Slugs modder resource.
-The ability to bludgeon people over with blunt weapons.-The dull green-brown sky replaced with a more blue-white colored one.
-New and more realistic ammo types: .22 and .50 caliber ammunition added.
-Vendors can now sell the new ammo types.
-Various inconsistencies fixed (Nuka-Cola Plant changed to Coca-Cola Plant, etc).
-New menu backgrounds (more interesting, in my opinion).
-Level cap raised to 40 (may be removed if it causes anyone trouble).
-Support for "The Pitt" ammo press (proper ammo names).
-A new gibbing system (high-powered weapons can tear foes apart or knock em down if they survive).
-New weapons such as a 40mm grenade launcher.
So, what are you waiting for? Go download it now!
P.S. Happy Canada Day to any Candians here.