Figuring out mechanics together? Laughable. Most raid teams I have had the "pleasure" of playing with were elitist pricks, where if you haven't watched 15 youtube videos beforehand, and know exactly what to do and when, you will be kicked. Or if you don't have a certain gun they dictate you have to bring, you are kicked. Even then, if you know what to do and such, you will still probably be kicked just before the final chest. I will say it's probably not all like that, especially if you can find a decent clan, but random made up fire teams are cancer in terms of raiding. I stopped trying over a year ago due to this.

Getting someone to teach you a raid nowadays is like pulling teeth though. I'm a returning player and have only completed SoTP one time. Noone wants to teach them or take new players with them. To be clear i think that 6 player activities are great but I also think that a 3 person version to teach the mechanics of the raid would be a good idea.