Marc Laidlaw
Marc Laidlaw, credited as Writer.
Appear in the games: Dota 2, Counter-Strike: Global Offensive, Portal 2, Left 4 Dead 2, Left 4 Dead, Portal, Half-Life 2, Counter-Strike: Source and Half-Life.
Credits (14)
Developer
Valve
The Half-Life Team
Artificial Intelligence
Writer
Storyline
Staff
