Hello, if you liked this mod, you should be (hopefully) intrested in it sequel, The Unknown: Source. It brings new style of classic Half-Life 2: Deathmatch gameplay. All-new weapons, maps, characters and more! It focuses on small player matches, with special focus on normal weapons - Gravity Gun has been removed. In big shortcut we can say, its Half-Life 2: Deathmatch with much more guns :] Of course it will come with plenty new maps, and few remastered maps from The Unknown.
The Unknown: Source - Check that out!