This song is in c standard tuning.
C|--------0-------0-------0-7-8-7-----------0-------0-------0-10-8-7-------|
G|------8-------8-------8---------8-------8-------8-------8----------8-----|
D|--7h9-------9-------9---------------7h9-------9-------9------------------|
A|-------------------------------------------------------------------------|
F|-------------------------------------------------------------------------|
C|-------------------------------------------------------------------------|
[ Tab from: http://www.guitaretab.com/b/bring-me-the-horizon/258816.html ]
C|--------0---------------0------------------------------------------------|
G|------8-------8-------5--------------------------------------------------|
D|--4s5-------5---5s2------------------------------------------------------|
A|---------(slide down from 5 to 2 but still pick the 2)-------------------|
F|-------------------------------------------------------------------------|
A|-------------------------------------------------------------------------|
this is 100% correct I tabbed it by ear and saw Lee play it live a few times.