Complex sentence: Crossfaith has also announced they will be playing the entire Vans Warped Tour in 2015 for North America, as well as also playing SlamDunk Festival in the United Kingdom in the May of 2015.
Split into simpler sentences: Crossfaith has also announced they will be playing the entire Vans Warped Tour in 2015 for North America. As well as also playing SlamDunk Festival in the United Kingdom in the May of 2015.