The Medic
The medic mode im murder mystery heres how it works. When you become one the text is red and it makes a tnt explosion sound or anything. You revive the fallen innocents then they have 1 more chance to live but they are slower due to murder stabbing them. When the medic dies a message will appear in the chat saying The medic has died! Collect the medkit to become the new medic.
Also i think a airport map would be awsome.
Yo, welcome to the forums!
I think you have an interesting Idea, but I think if others were to be able to become medic it would be too overpowered, similarly is there a limit on how many people can be revived? Because in my mind, I would just find the murderer and go behind em and revive all the people they kill and basically get the innocent win easily as the medic would perpetuate the game past the five min timer or you could keep reviving the sheriff and such and they can shoot the mur.
Similarly, when revived, the slowness effect is provided, but what about coins, in my mind if I die as an inno with my ten coins I just chase down the mur for the shot.
Just things to keep in mind 
Thats not really the point of the game though the point if the game is to kill people 