Oh, that’s pretty crazy, man.
Honestly, you should check out Retribution. It’s my favorite one. It’s pretty cool. It’s the first introduction of all the talom soldiers and stuff, You get to play as Gabriel Reyes before he went all Reaper-y, And you even get to play in areas of Rialto that aren’t on the payload map in PvP. It’s just really dope.
Sweet, it had a long queue time, so I didn’t bother.
Only Rein and Sigma work for that. Orisa’s shield is too botched right now for it to work against the Bastions. Sigma’s also just barely works.
I won molten core with torb, sym, mercy and orisa. Took a loooot of tries though. A lot of people picked doomfist…
Honestly I did both of them first try. I haven’t gotten around to retribution yet (if it’s even out), but I thought that the lava didn’t change anything and the damage buff was more than fair enough of a compensation. It’d be a lot harder if it wasn’t all heroes. Because of that, I can just cheese it with Bastion Orisa Zen Baptiste. Being on expert rather than legendary doesn’t help in the difficulty department either.
People pick such useless heroes for this mode it actually baffles me.
Torbjorn is hands down the best DPS for any PvE mission, his turret on A.I is just far too powerful.
But nooo go ahead, lock in Hanzo and miss half your arrows until the Orbiter blows up the cart. 
Double barrier is incredibly strong for both modes.
Ton of damage, good ways to juggle between tanks, tons of cc, powerful ults which shred any heavy units (detonator, bastions, OR 15)
Moira for the sustain and damage
I’ve beaten them on pretty much all the “easy” hero’s so now I play them with less conventional ones.
I want more of a challenge and this is how I do it.
Unless blizz wants to add even harder levels this is how I will attain harder than legendary