I wrote it in the bug list, but did not create its own thread for it. So there we go.
Summary of the bug :
While in first person view, there is no animation of the machine gun.
When does this happen : (after launching the game, in the menu, while racing, ...)
On which track did it happen : (Industrial, Playground, ...)
On which speed did that happen (if related to physics) : (Low, Medium, High)
How often does this happen : (Always, very often, occasionally, could not make it happen again)
How to replicate the steps (if reproducible) :
Go in first person view, then fire the machine gun
More details :
It might be related to the fact that first person view makes your car invisible
(maybe if the bullets are "attached" to your car, they become invisible too ?)
Any screenshot, or link to a video showing the bug :