People here are too vengeful and grudge-holding. If they have a means to find out who destroyed their base, they will most likely go to (oorp) lenghts to get even. Which will cause all kinds of unpleasantness.
This happens anyway, it's in every members nature to be peeved when they've been gunned down. I for one think it's a good idea. But like Dingo said, the ID and IFF of the individual would suffice.
On a modder side of things though; I've a feeling alot of work would be involved.