wow story missions are far too easy if you are a level or 2 above the enemy level. I was roaming around leveled up to 28 didn't want to do the last mission wanted to savior it, but when I did it was incredibly easy and quick.
I listened to the people saying save the side missions to level 20 and above because the XP scaled to your level and 1 side mission is 33% of oyur required XP to level up. its really not necessary to do it that way id suggest levels 15-22 where the levels that I spent the longest time grinding through.
Ill do the strongholds and move up to world tier one pretty soon, 100% solo the whole game as I don't have playstation+. It is very doable I am maybe average at gaming. If I listened to the forums about this game being far too hard solo I wouldn't have started it. Anybody worried about it being too hard don't be, don't get me wrong it is difficult but it is not impossible. I die a lot too which probably shows my skill level isn't that high. best advice I got was when you die don't try what you are doing the exact same way again use different cover, use different skills or different guns.