Haha, yeah but only because my fps is so low right now I don't want to risk shooting a team mate in the head with my lack of frames! Just throwing in my opinion!
I think that would be cool, although others here disagree. People want to be able to fight back, even though getting hit in the back of the head hard enough would actually make you go blind/sever your brain stem. Power armor doesn't do a whole lot of good when you can't move or send signals to your heart(s) to keep beating. The assassinations from the Halo games were a nice touch (even though they were mostly performed against me, and I got to do very few of them). Executions right now are a bit counter-productive. They are long and leave you vulnerable. The execution from behind would have to be quick to be viable.
Actually, once someone starts an execution move on you, you're unable to do anything, even skip to the respawn screen.
That's why generally people won't want an assassination execution, because people want to be able to fight back, like I said.
Not sure if this has been mentioned, but more damage from behind REALLY punishes players with low sensitivity. This is objectively bad.
