It may seem completely silly, but during the verse patterns, think to yourself "chika-chika-BAM-BAM-chika-BAM-BAM-BAM-BAM-chika-BAM-BAM-BAM-BAM" to help get down the strange strumming patterns. However, after four repetitions of this pattern, be prepared for one of the repetitions to start off with a stream of notes very similar to One's Darkness riffs, so strum at that speed and continue like nothing happened.