CoE story mode is easy for the most part. I did it on a couple classes. However there is a part where you will encounter several elites at the same time before the "toxic room", where you escort zojja and her golem through. These elites will stunlock you continuously, so bring some stab, and aoe with you and watch for corners to kite around. You're going to need it. Explorable paths puts you on a dead stop when you reach the laser room. Theoretically you can duo the switches here. But for some reason it just doesnt de-active for some reason. Even if you do it within the timer. So you need 4 players here. Rest is solo'able.