The grizzled guns and leaping explosives of Modern Warfare 3

In the latest dev diary showcasing upcoming FPS blockbuster Call of Duty: Modern Warfare 3, project leads Mark Rubin and Michael Condrey drill into the game's weapon leveling system. But while it's thrilling to learn about the game's customization updates, we're most excited by that jumping explosive. Jumping explosives!

This article was originally published on Joystiq.