Re: Question…What it is the Mod: ATAK?
Basic setting is 150m indicator for an enemy tank being close. (So, no, it will not work anything like 6th sense.)
Nice for situation awareness.
It will show you which enemy vehicle is closest to you. Saves my ass when a fast tank comes from the back and I’m in tunnel vision mod.
Nice addition to your situation awareness would be also direction box.
Now this is the mother of all situation awareness mods. If the arrow is green, the enemy tank cannot shot at you. Red, he is visual range but not aiming at you. Purple – you better move because in about 1-2 seconds you will receive gift 
(the enemy is aiming at you)
BTW: 6th sense is a server side action so there is no way to replicate that in a mod so it works as good as the actual perk.