I did get popup message on the top left corner of the screen once saying that I unlocked/achieved the Marksman achievement, but it didn't save to my achievements list.
Also Tourist is not unlocking, I did play and win not just rounds, but entire matches in each and every Arms Race and Demolition maps that are given to chose from when playing offline with bots. I did play and repeat like for 2 days now and it's not unlocking.
Best Answer
This is bug, shorttrain map is removed from the select list. You need to first load any demolition map and then from console write changelevel de_shorttrain and win a match.