Operation: tuxxego 2
Operation: Tuxxego 2 is a single-player modification for Half-Life 2: Episode 2 using Mapbase developed by NeoBag software.
It's modDB page describes it as:
"Operation: Tuxxego 2 is a zombie survival mod for Half-Life 2 inspired by games such as COD zombies and uses the weapons from the cut sourcemod VANCE."
Level Creation
See Operation: Tuxxego 2: Level creation.
Operation: Tuxxego 2 has modding support like every other sourcemod, allowing players to create custom maps using Hammer.
The recommended version of Hammer for modding op:t 2 is Hammer++ as it was used by the devs.
Gameplay
Operation: Tuxxego 2's maps use modified versions of zombies from half-life 2. The normal "common" zombies are reskined zombies from Half-Life 2, while "special infected" are modified zombine, Fast zombie, and poison zombies. The zombies use info_spawn_destinations to make gameplay unique.
Release
Operation: Tuxxego 2 is set for release on March 3rd.
External Links
Operation: Tuxxego 2 on ModDB