The grief system in the original game works pretty well in my opinion. Since nades now cost resources and the thumper's gone, all together with the short TTK, I imagine the grief system will be more punishing. However, as mentioned, in battles with such enormous scale, friendly fire seems unavoidable. I believe this problem can be solved by a different approach.
A smart hit detection system to determine the source of incoming damage.
If the source is friendly, the player only takes a portion of the damage (as in friendly fire in counter strike), and the source player receives minor grief points.
In the original game, when friendly fire occur, only a simple counter is shown on the screen, I felt it to be vary ambiguous and should be changed to a more obvious warning sign.
If someone is killed by friendly fire however, major grief points should be given due the the diminished damage, and the warning given.
All being said, beta will provide more insights on this particular subject.
On a side note, the current kill cam can be quite rage inducing when you see a friendly assisted in your demise.
this made me laugh for like a minute straight 
Hybrid Mode
