Source: HL2Files.com

Wile trying to promote some of the great custom maps made by the community I stumbled over this piece of beauty found at HL2Files.com. Half-Life 2 Freeway To C17 is a great looking map for the Half-Life 2 Deathmatch made by Tom Rudderham:

This map is for Half-Life 2 Deathmatch. On the outskirts of City 17 a battle rages on an abandoned freeway. Use the burning cars and trash as cover, and the subways for shelter and safety as the battle rages above! Map includes a hidden hideaway, tank, trees to hide in and a ton of detail.

You can download the map here.