Get kills that are not mine and vice/versa
I've seen this problem around for a long time now, but recently it has gotten much worse as it is happening more often.
Some examples I've experienced:
1. I was trading fire with someone and they took cover so I threw an M34. Just as I did they came back around and killed me. My M34 killed them, but it showed that they killed themselves with an M34.
2. I've thrown an M67 and gotten a RGO kill. I don't even think it was my M67 that got the kill. I didn't get any hit markers.
3. I've been killed by an enemy grenade, but it said I killed myself with my ACE23.
4. I've gotten credit for revives I didn't even give. It wasn't the bug where you mouse near them and revive prematurely.
5. I've thrown an M34 far enough I wouldn't take damage, but somehow I take damage as if I threw it at my feet.
6. I've thrown an M34 into a crowd of enemies and didn't get a single hit marker. Though it appeared the enemies did take damage and were easy kills. I bet someone else got my hit markers.
7. I've been hit dead on by M320's and the explosion is right there, but take no damage. I'm sure vice/versa is true also.