Seems familiar. Isn't there a server specified in this minigame, like "Plan B; Protect The President"?
As for your suggestion, for the first reading it sounds quite interesting. Only becaus if "Protect The President" is the goal and the name of the game, then why would he/she shoot at his/her attackers? Because the way this minigame could look for me is like the president hasn't got any weapon, he can only count on his bodyguards to defend him. This way it could work out smooth according to its name. I at least assume this. But this is only a way to look at. This seems something like the HP and the DM combined, at least because of its purposes.
If someone else can come up with an enhanced solution based on this minigame, then feel free to do so. As for me, I give this a +1, because if done in a correct, good and smart way, this could work out, I think. Of course, we unfortunately don't know if there would be any need for this to be implemented, and that if anyone ever want to play.