I imported from my TSW2 profile my progress and I have 9 out of 14 scenarios completed so far from TSW2 in TSW3 To get the TSW3 achievement/trophy for SEHS scenario, can I complete the rest of them or should I start at 0 out of 14 scenarios completed? Please and thank you -- https://forums.dovetailgames.com/threads/guide-on-route-acronyms.56183/
From what I understood regarding porting stuff from one game to another is that scenarios do not migrate. So if you've completed scenarios for a given route in TSW2, you'll have to do them over again in TSW3. But, if you already had this trophy unlocked in TSW2, then playing only one scenario for this trophy in TSW3 would be enough to trigger the trophy in TSW3. I am still on TSW2 so can't really give you a definitive answer, but it's how I understood what others have written. Maybe someone that has migrated their profile from TSW2 can comment.
What a confusing post. Anyways.. For Services: If you have 100 services completed and the Achievement/trophy in TSW2, doing one more in TSW3 gets the Achievement/trophy. For Scenarios: I competed the rest of the Scenarios but the Achievement/trophy did not show up. So: You must start at 0. For Training: Not sure but seems you start a 0 too. When I get a chance I will try to do one more training missions for SoS in TSW3 to see if the Achievement/trophy shows up considering that I got all of them done in TSW2 (and TSW3 added one more).