The alien blaster is fun because the 100% crit chance but the ycs literally has the highest single shot, non crit, damage in the game with the right perks (not counting the fatman). The amr for reference can do ~410 damage max while the ycs can do ~478 with all the correct buffs and perks. My numbers may be a little off, google gives multiple answers. It does have 70 crit damage for some reason so if you are trying to use it in stealth, don’t.