This is a fansite so we have no power to do what you are asking.
While that map would be cool it doesn't leave a lot of room to forge and is a map that big is unneeded
Like others have said I usually let people keep their assassinations. But if I am playing with a friend or someone who is being annoying I will do my best to keep them from getting that kill.
I want to see the gravemind juggling hunters juggling brutes juggling elites juggling grunts juggling plasma grenades while doing the hula on top of the pillar of Autumn in slipspace.