Is there some way to actually use the Apple of Eden?

[Voice From Beyond]

So I have the Apple of Eden and I am supposed to apparently use it, somehow, to make the enemies kill each other, but more specifically the indicated targets. It seems that it is hit or miss whether the enemies will attack each other, me, roll around on the ground, or cower on the ground. There are no instructions on how to use the thing.

I have tried pressing M1 and holding M1. There is some in-fighting with the enemies and some of the targets have been killed, but there doesn't seem to be any method to achieve the result.

After playing this and AC 3, I think I am done with Assassin's Creed and Ubisoft. I'm playing games to have fun, not pulling my hair out in frustration with the stupid, glitchy, gimmics that they put in their games, that don't work properly.

[Phil khajeets]

Same with the gun can't use it properly outside of combos, AC 3 is 15 times more ♥♥♥♥♥♥♥ than this though everything about AC 3 is so ♥♥♥♥♥♥♥ bad that story alone made me rage

[BloodyMares]

Easy now, it's not that difficult to grasp the use of the mighty Apple.
1) You can use it like a counter kill by pressing the button the moment somebody attacks you (doesn't apply to the gunners).
2) By holding the button until the yellow area of effect expands on several enemies you make them either fight and kill each other or cower. I noticed that same-class guards don't usually fight each other.
3) If you hold the button long enough, you'll notice that after the yellow comes the white area of effect. Anyone who's caught in the radius dies after you release the button.
That's basically it.