Fridge / SAS Zombie Assault

Fridge Brilliance

• In 4, ever wondered why fire-based zombies are resistant against Cryo Grenades and their turret variant? It's because cryogenic things are extremely cold. In fact, it's so cold that it burns them!
• The RIA Trident and HIKS M1000 appears to be too wide and too large (respectively) to fit in a Black Strongbox. This pretty much explains why they're only rewarded in Championships or crafted by hand.

Fridge Horror

• Why are 4 and Fortress Destroyer similar games? (Yes, they are made by the same creators) assuming that The Good Guys Always Win after the events of the latter game, everyone associated with Blackwater is presumed to be Back from the Dead over a millennia later, which could be why they're still hell-bent on Taking Over The World.