Corpse: Zombie model from Mixamo
Scripts and models from: l4mishotiz
Burnt truck model from: Black Rayne
Flamethrower from: Muse Games
City model from Unity Magic (Purchased)
Roach Model: Zenchuck (Purchased)
Abandoned Building model pieces: Cosmic Prophet
Buildings and various models from level two: Stamina Models and Cosmic Prophet
Sewer Models: Cosmic Prophet, Unity, and Bogwoppet
Jeep model: Xdyne Inc. and Comtech Ltd.
Key model: Tornado Models
GUI scripts: Yoggy
Music by Psionic