DoD Source was released to the public yesterday. This game plays great on the Source engine. The graphics, physics and sound make the game great fun. There were few changes to the gameplay. Mostly UI changes and some changes to the weapons and loadout. I really like the MG's ability to deploy on any surface. This adds a lot of strategic options for the MG player. The new weapons for each class will take a little getting used too. For example, one time I snuck up on a camping sniper and was about to use the knife. But I couldn't find the knife! As a noob on the version, I didn't know the class I had choosen didn't come with a knife. The sniper thought is was funny to turn around and see my avatar swapping weapons like crazy.
The game isn't without bugs. Once while playing Flash, I bumped into a teammate and our avatars got stuck together. We couldn't move! An enemy came along and happily ended our troubles.
DoD Source is great for any fan of the original Day of Defeat. Many of the guns fire differently so expect minor changes from the original. The Allied rifleman gets a new grenade launcher. It give the rifleman more range to toss a grenade. However, you cant control the fuse time. Another great change is the grenades start their fuse when you begin to throw them. So you dont need to use the "toss on the ground and rethrow" trick used in the first DoD.
The new maps might look familiar, but many have new paths added. So explore a bit on the DoD maps to find all the options.