Blatanty stole this from other game but i think FA would benefit from having this feature too.
I'd call it mentor mod or alike and use it for teaching purposes.
The idea is simple. The mod would allow a 3rd player in a custom game to view the game from the desired player's point of view like you can do it in a replay, but in an actual game and only from that player's POV.
I believe that will be really helpful for trainers teaching new players the game. Much better trainer-trainee ineraction, when trainee can be told what and where he did wrong right at the moment he did it, use the the advice etc etc.
I suck at modding this game and cant do this myself so i figured if i could ask the community? If someone would make this mod happen, it will be really awesome