Assassination system re-imagination

We’re going to refer to the player performing the assassination as: Player and the player being assassinated as: Enemy

Here’s a system I’ve been thinking about:

There are 2 methods:

  1. Full assassination: The player melees the enemy from the back while holding the melee button (RB) for the full assassination animation which results in a bonus points and a medal. For this method, the player should be allowed to cancel the animation if they haven’t reached the part where the spartan stabs the enemy (before the kill counts) in case he needs to retreat and/or was ambushed by other enemies, but the enemy (who was being assassinated) survives. If this scenario happens (cancelling the assassination), the next part depends on the tow players skill.

The attacking player has an advantage here, considering he’s the attacker and that he’s facing the enemy’s back. He can either:
a. melee the enemy from the back (if the enemy doesn’t act fast enough)
b. If they have a powerful weapon (i.e. shotgun, scattershot, fuel rod gun) they can kill the enemy easily and deal with the ambush.
c. use a tactical advantage to avoid/outperform the enemy and his teammates (i.e. hard light shield, regeneration field, resistor perk)

If the enemy acts fast enough and outsmarts the player, he can either:
a. stuck the player with a plasma grenade (depends on how fast he can turn to face the player)
b. If they have a powerful weapon (i.e. shotgun, scattershot, fuel rod gun) they can kill the player.
c. use a tactical advantage like the thruster packs to avoid the player and/or perform a Ninja assassination.

Notes:
a. The above scenarios are affected by the tow players skills and reflexes, although, as mentioned above, the attacking player has the advantage.
b. The victim can still be saved by killing the attacking player (the assassin).

  1. Quick assassination (Beat down): The player melees the enemy from the back by only pressing the melee button (RB) for a normal melee which results in a bonus points (less than the full assassination method) and the beat down medal. Totally classic. Nothing changes.

I haven’t thought this through very much, so fell free to share your opinion about the cons of this system and how it can be improved.

Also, trying to figure out an effective Anti-Assassination-Theft way. Some kind of punishment for killing players being assassinated by a teammate.