Start a multiplayer game on the map `op4ctf_hairball`. It's a very small map - choose any team and walk onto the slippery ice in the middle. You will never stop sliding around. This is a bug introduced within the past decade of game updates.
There is an ifdef for Win32 in the function that makes it so only Windows compiles can save stats. The function would need to be edited to work across all supported platforms.
## MP5 uses an unused/unfinished animation when firing.
Due to the animation enum still matching up with HL, the MP5 expects an identical animation list to HL. But Gearbox seemingly intended to introduce a holster animation to the MP5 and made a duplicate of the deploy animation based upon longidle. This animation appears in the animation list right before the shooting animations. As a result, the game proceeds to use "deploy, shoot, shoot" instead of "shoot, shoot, shoot"
Adjusting the enum could allow for this to be fixed, but the HD pack does not have this animation. It might be wise to edit the model to remove the extra "deploy" animation.
## Fluff: SAW reload doesn't keep track of bullet bodygroups.
When you shoot the SAW in OP4, it changes the bodygroup to reflect the bullets available in the clip. When you reload the SAW it ALWAYS assumes that you're loading a full clip. This, however, is not always the case.