Here's a brief summary of what's included check the classlist.txt for a full list of units objects weapons and ammunition:
United States - 1st & 29th Infantry Division, 5th Ranger Battalion, 82nd & 101st Parachute Infantry Regiment.
United Kingdom - 6th Airborne Division, British Commandos.
Germany - Heer, Heer-Camoflagued, Fallschirmjäger, Schutzstaffel.
With over 30 infantry weapons.
30+ German vehicles - including tanks, recon vehicles and troop carriers.
20+ Allied vehicles - including tanks, recon vehicles, troop carriers and landing craft.
Allied - B-17 Flying Fortress, Douglas C-47A Skytrain, Lockheed P-38 Lightning, P-51D Mustang, Hawker Hurricane Mk.IIa, Spitfire Mk.Ia.
Axis - Bf-109E4, Bf-109F2, Bf-109G6, Ju-52/3mg5e, Ju-87.
14 MP Missions
9 SP Missions
An hour of original music by SFG
Ambient Environment objects - ships and aircraft for atmospheric purposes, not actually playable.
Bayonets (German K98k and M1 Garand only for now)
Prone AT Weapon Firing
Custom Weapon Animations (holding and reloading)
Player wounding system (more improvements to come)
In-game User interface (attaching bayonet, building sandbags, foxholes etc)