Today I created a Solo Deck for the 2nd scenario and scored a 2.
Ended with a threat of 19, no damage on the heroes and 17 victory points (2 Hill Trolls, Marsh Adder and 2 Gladden Fields.
Gloin to take the damage for resources, healing him up with Lore cards
Denethor/Henamarth Riversong to see which encounter card comes next
Glorfindel for questing
Played Gandalf 6 times total to decrease your threat (3 times with Sneak Attack)
Forest Snare for big enemies (Hello fat troll, here is my trap for you!)
Solo Control Lore/Leadership
Hero (3)
Denethor (Core) x1
Gloin (Core) x1
Glorfindel (Core) x1
Ally (24)
Daughter of the Nimrodel (Core) x3
Erebor Hammersmith (Core) x3
Faramir (Core) x3
Gandalf (Core) x3
Gleowine (Core) x3
Henamarth Riversong (Core) x2
Miner of the Iron Hills (Core) x2
Silverlode Archer (Core) x3
Snowbourn Scout (Core) x2
Attachment (11)
Celebrian's Stone (Core) x2
Forest Snare (Core) x3
Self Preservation (Core) x3
Steward of Gondor (Core) x3
Event (15)
For Gondor! (Core) x3
Lore of Imladris (Core) x2
Lorien's Wealth (Core) x3
Radagast's Cunning (Core) x2
Secret Paths (Core) x2
Sneak Attack (Core) x3
This deck was built with 2 Core Sets and still needs many changes to get better.