Long Night of Solace when you are leaving the bridge is like impossible. Other than that, the level is pretty reasonable.

Nightfall was OK...seemed like a normal legendary level to me. Tip of the Spear, however, really angered me at the part right before you get on to the falcon. The two hunters in the AA turret SUCK, and there's literally no ammo or healthpacks anywhere on that level.

New Alexandria was fine for me. I ran past all of the hunters, destroyed the jammer, and ran past the hunters out the door. Ivory Tower was done the same way.

The last battle on The Package actually isn't too hard. I beat it twice on legendary. You can let the AI back you up, so it's not as difficult as playing firefight on legendary alone.

The last battle on The Pillar of Autumn though.......my god. Talk about an absolute lack of any useful weapons... Hope you are really good with the plasma repeater!