
INSTALLATION:
Insert files in: (where steam is downloaded)\steamapps\(USERNAME)\half-life 2 deathmatch\hl2mp

Combine Soldier = Sonic
Combine Prison Guard = Super Sonic
Combine Elite/Metrocop = Tails

Credits:
http://www.garrysmod.org/downloads/?a=view&id=116479 - for sonic and super sonic models/skins and for tails model
http://www.garrysmod.org/downloads/?a=view&id=119930 - for tails skin
me - for porting it to Half-Life Deathmatch