Game: Left 4 Dead 2
Type: Mod, Feature, Source-Mod Plugin
Developer: Me

Role: Gameplay Engineer
Engine: Source
Language: SourcePawn
Tools: DHooks, SourceScramble, Matchmaking Extension Interface, IDA Pro

Source Code: GitHub

This is a plugin that was developed for another mod that allowed each campaign to have two groups of survivors at the same time. Every campaign has one unique group of four survivors with their according voice lines and this plugin makes the game also use the voice lines of the other survivor group so that both groups can speak and interact with each other.