When I first started last season I actually agreed with you. I didn't think I would ever beat the 1280 lost sector solo. All it took was some help from this great community and a few tweaks to my usual load out and the 1280's became a breeze. The only real problem is that I've done them sooo many times, specifically the ones for the exotic warlock arms and still haven't gotten them. After you beat it once solo, the chance of getting them should go way up and I still have nothing to show for it