When i am throwing grenades or using the D34-D launcher, the grenades seem to go behind me or are getting stuck on something making them blow up behind me or damage me instead of going in the desired region i am aiming/shooting.
Grenade issue
Seconded. Has happened to me a few times, frags and flashbangs. Never with the launcher though, that sounds terrible!
Same thing for smoke grenades and thermal decoys.