To learn Papa Roach - Lifeline chords, grasp the musical fabric of the song with this sequence - Em, A, G, E, A, D, G, D, G and Em of chords. I suggest starting at a calm pace of 53 BPM, and as you gain confidence, approach the song's BPM of 106. Adapt the capo setting considering your vocal range, with reference to the key: D Major.