riff 1:
E|--------------------------------------7-9-7-5-7-5-4 x's 8-|
B|----------------------------------------------------------|
G|----------------------------------------------------------|
D|---------44444444-----------------4-----------------------|
A|-666-444-22222222---------666-444-2-----------------------|
E|-444-222-----------x's 3--444-222-------------------------|

Riff 2: Part A                               Part B
E|---------------------------------------|--------------------------------------|
B|---------------------------------------|--------------------------------------|
G|---------------------------------------|--------------------------------------|
D|-6-------4-------4-6-------6-4-------2-|--------6---------4--------6--6-4-4-2-|
A|-4-------2-------2-4-------4-2-------2-|--------4---------2--------4--4-2-2-2-|
E|---00000---00000-----00000-----00000-0-|-00000-----000000---000000----------0-|
pm  .....   .....     .....     .....     .....     ......   ......

Riff 3:
E|---------------------------------------|
B|---------------------------------------|
G|---------------------------------------|
D|-88-88-8-44-44-4-22-22-2---------------|
A|-66-66-6-22-22-2-22-22-2-44-44-4-------|
E|-----------------00-00-0-22-22-2 x's 4-|

Riff 2: Part A x's 2 , Part A + Part B

Riff 3

Riff 4:
E|----55----77--------3-2-1-4-3-2-1-4-3-2-1-4-5 x's 6-8-| (couldn't tell exactly)
B|-33----55--- x's 8------------------------------------|
G|------------------------------------------------------|
D|------------------------------------------------------|
A|------------------------------------------------------|
E|------------------------------------------------------|
No fall out boy song is complete without muffled together notes. =D

Riff 3: Till End.