it requires lot of micro but if you have it, it is really good, you can use the barrage but it has a really long reload time, so you need to get it close to the enemy to use it in auto attack, thats when the micro enters, you use the barrage, when it ends you get closer to the enemy to attack, and repet, it is slow so you need to be fast, the thing with getting attacked by enemy arty happens with all the arty pieces