Добавил: The DSystem
Models with new skins (except the G Man). Recon and Hgrunt have alternative models.
Barney and Zombie still have parts that are colored.
1 - Extract the folders with "_addon" on the Half-Life folder.
(Example: C: \ Program Files (x86) \ Steam \ steamapps \ common \ Half-Life)
2 - Once the game starts, check the options, and in the video tab check "Allow custom addon content."