To install them, simply place the extracted files in your "custom" folder in "[steam path here]\steamapps\common\Half-Life 2 Deathmatch\hl2mp". If there isnt one, simply make a folder titled "custom".
He's pretty cool. To download it, click here. Replaces male_07.
Includes: Proto-Barney, Ivan The Space Biker, Barney (DM), and Zombie (DM). To download it, click here. Replaces male_01, male_02, male_03, and male_04.
Map from the HL2 beta WC mappack. Thought it would work good as a Deathmatch map. To download it, click here.
Rats map that is somewhat based off my actual bedroom. To download it, click here.