Guild Wars 2

Dear Users!
Id like to know some information about the current season:
- How many players can form a team to do the ranked season without a guild?
I mean, if we queued up with 3 or 4 members in the party, we will be matched with other premade groups, or just like if I queued solo?
- Im stucked at: the achievement track "Year of the Ascension Part I" with 10/11, but I already done with 12 achievements on that sections.
* The missing ones is:
* League Elementalis/Revenant/Engineer/Necromancer and Warrior,
* Daily League Participator - Recruit (now its: tier 12/15 - objectives: 11/12)

Why I didnt get the 10 AP achievement, I need to complete the missing professions league too?

Thanks for your answers!

-You can only queue up with one other person in ranked now.
-Some achievements are required to advance to the next part. Participator is one of them.

Edit: To be clear, there are 11 achievements you must do. One of these achievements is “League Professional” which requires you to do two of the profession achievements. So the profession achievements are not directly part of the 11 and doing more than two professions does not count.

Arcadio.6875:

-You can only queue up with one other person in ranked now.
-Some achievements are required to advance to the next part. Participator is one of them.

Edit: To be clear, there are 11 achievements you must do. One of these achievements is “League Professional” which requires you to do two of the profession achievements. So the profession achievements are not directly part of the 11 and doing more than two professions does not count.

Thank you so much, than i need to be done with the another missing one
Edit: But that missing Paricipator achievement need to: done 3 ranked match / 1 day, so i need to do this every day (3ranked)?

levcsu.7892:

Edit: But that missing Paricipator achievement need to: done 3 ranked match / 1 day, so i need to do this every day (3ranked)?

That is correct. If you are at 11/15, you will need to play 3 games a day for four more days to finish it off.
The later tiers also have this achievement so make sure you’re playing consistently.

Chrury.4627:

levcsu.7892:

Edit: But that missing Paricipator achievement need to: done 3 ranked match / 1 day, so i need to do this every day (3ranked)?

That is correct. If you are at 11/15, you will need to play 3 games a day for four more days to finish it off.
The later tiers also have this achievement so make sure you’re playing consistently.

Thank you so much for your replies!