Its probably been suggested B4 but...
When you play with modded weapons, and you kill someone with a bullet that is exclusive to one weapon, but with a different weapon, then the original weapon will show up in the kill console. A good example is anything firing arrows will show up as the bow in the console. I think if you make a weapon fire nades then nades will show up in the console. Oh and anything firing stat gun bullets.
Also, fix the other glitches. (Invisible bullets fired from law, etc.)