There is no overarching progression in Claws of Veeshan. All the zones are open and it appears you are free to do the zones, tasks, and missions in any order you wish.

• Achievement: Mercenary of Cobalt Scar
  
  • Just an 'ol Fashioned Love Song - Adella Undertow - sirens
  • Don't Tell Me That You Love Me - Adella Undertow - ulthorks
  • Know What I Mean, Wyvern? - Adella Undertow - wyverns
• Achievement: Partisan of Cobalt Scar
  
  • Catch and Release - Aisel Sharpnose - speaking
  • Seashells by Seashore - Provisioner Tarka - help
  • Unchained Melodies - De'ess Al'coda - get rid

• Achievement: Mercenary of Western Wastes
  
  • Kedge Sledge - Captian Alron Cuppboard - kedge
  • Burrower, I Hardly Know 'er! - Captian Alron Cuppboard - burrower
  • What Rhymes with Brontotherium? - Captian Alron Cuppboard - brontotherium
• Achievement: Partisan of Western Wastes
  
  • Thach Haul - Thach Jerden - adventurer
  • One for you, Two for me - Colwell Emtray - employer
  • Neither blame nor praise yourself - Siremth - temple

• Achievement: Mercenary of Temple of Veeshan
  
  • Go Eat Wurms! - Barlo Aleslay - wurms
  • As Clear as Mud - Barlo Aleslay - clear drakes
  • While You're at It - Barlo Aleslay - wyverns
• Achievement: Partisan of Temple of Veeshan
  
  • Should have been a Gemologist - Kebsis - god
  • Beyond the Threshold - Fipnoc Birribbit - interested
  • Better than Ezra - The Great Hero Ezra - interrupt
• Achievement: Hero of Temple of Veeshan
  
  • Aaryonar (g) - Sentry Ellison - small - ready

• Achievement: Mercenary of Dragon Necropolis
  
  • Founder's Keepers - Quincy Algernope - wrong
  • Just Stab Quieter - Quincy Algernope - subtle
  • Restless Mice - Quincy Algernope - restless dead
• Achievement: Partisan of Dragon Necropolis
  
  • Rats of a Feather - Bawjitsia Jaradh - help
  • These Old Bones - Researcher Robin - tombs
  • Let them Stew - Tilly Rocksmelt - built
• Achievement: Hero of Dragon Necropolis
  
  • Zlandicar Reborn (g) - Watcher Scots - smaller - ready

• Achievement: Mercenary of Skyshrine
  
  • Operation: Raptor Sweep - Kalla Mordant - raptors
  • Operation: Rat Catcher - Kalla Mordant - rats
  • Operation: Can of Wurms - Kalla Mordant - wurms
• Achievement: Partisan of Skyshrine
  
  • Crystallin for Time - Black Scar - book
  • Bibliotheca Antiqua - Manuel Gaoler - relocate
  • Unplanned Obsolescence - Julia Shadestone - black scar
• Achievement: Hero of Skyshrine
  
  • The Crusaders (g) - Watcher Sprin - smaller - ready

• Achievement: Mercenary of Sleeper's Tomb
  
  • Drakes! Why'd it have to be Drakes? - Qabruh - strange
  • Sorcery and the Sword - Qabruh - stop
  • Good, Now Stay Dead! - Qabruh - haunting
• Achievement: Partisan of Sleeper's Tomb
  
  • A Little Bit of Everything - Kolvthnyr - items
  • Witness Me! - Berglok - *just hail
  • Wipe Your Feet - Glorifying Saffron Ash - companion
• Achievement: Hero of Sleeper's Tomb
  
  • The Call (g) - Boridain Glacierbane - group - ready