Alright. This is the tab for the acoustic version of A Modern Myth. 
I watched a performance online of Jared Leto playing it and I am 
pretty sure this is exactly how it is played. 

Tuning: CGCFAD 

**Intro** 
D --------------------------------------------------------| 
A --------------------------------------------------------| 
F --9-9-9--5-5-5---------------9-9-9--5-5-5---------------| 
C --9-9-9--5-5-5--7-7-7-7-7-7--9-9-9--3-3-3--7-7-7-7------| 
G --7-7-7--3-3-3--7-7-7-7-7-7--7-7-7--3-3-3--7-7-7-7------| 
C ----------------7-7-7-7-7-7----------------7-7-7-7------| 

**Verse** 
 "Did we create..." 
D --------------------------------------------------------| 
A --------------------------------------------------------| 
F --9-9-9--5-5-5---------------9-9-9--5-5-5---------------| 
C --9-9-9--5-5-5--7-7-7-7-7-7--9-9-9--3-3-3--7-7-7-7-7-7--| 
G --7-7-7--3-3-3--7-7-7-7-7-7--7-7-7--3-3-3--7-7-7-7-7-7--| 
C ----------------7-7-7-7-7-7----------------7-7-7-7-7-7--| 

 "The secret is out..." 
D --------------------------------------------------------| 
A --------------------------------------------------------| 
F --5-5-5-5-5-5----------------5-5-5-5-5-5----------------| 
C --5-5-5-5-5-5--7-7-7-7-7-7---5-5-5-5-5-5--7-7-7-7-7-7---| 
G --3-3-3-3-3-3--7-7-7-7-7-7---3-3-3-3-3-3--7-7-7-7-7-7---| 
C ---------------7-7-7-7-7-7----------------7-7-7-7-7-7---| 

 "To buy the truth..." 
D --------------------------------------------------------| 
A --------------------------------------------------------| 
F --9-9-9--5-5-5---------------9-9-9--5-5-5---------------| 
C --9-9-9--5-5-5--7-7-7-7-7-7--9-9-9--3-3-3--7-7-7-7-7-7--| 
G --7-7-7--3-3-3--7-7-7-7-7-7--7-7-7--3-3-3--7-7-7-7-7-7--| 
C ----------------7-7-7-7-7-7----------------7-7-7-7-7-7--| 

 "The secret is out..." 
D --------------------------------------------------------| 
A --------------------------------------------------------| 
F --5-5-5-5-5-5----------------5-5-5-5-5-5----------------|      x2 
C --5-5-5-5-5-5--7-7-7-7-7-7---5-5-5-5-5-5--7-7-7-7-7-7---| 
G --3-3-3-3-3-3--7-7-7-7-7-7---3-3-3-3-3-3--7-7-7-7-7-7---| 
C ---------------7-7-7-7-7-7----------------7-7-7-7-7-7---| 

 "Goodbye..." (listen to song to figure out how many times to play this part) 
D --------------------------------------------------------| 
A --------------------------------------------------------| 
F --5-5-5-5-5-5----------------5-5-5-5-5-5----------------| 
C --5-5-5-5-5-5--7-7-7-7-7-7---5-5-5-5-5-5--7-7-7-7-7-7---| 
G --3-3-3-3-3-3--7-7-7-7-7-7---3-3-3-3-3-3--7-7-7-7-7-7---| 
C ---------------7-7-7-7-7-7----------------7-7-7-7-7-7---|