How many members does your coalition have and what are your milestones in the Coalition Missions?

Since the last changes to Coalition Mission rewards, both the number of reward packs as well as the number of points needed to reach the milestones have changed and are now, at least according to Plarium, solely dependent on the number of members in a coalition.

Do we know how many coalition classes there are? Obviously, regarding the fifth reward pack, there must be two but is this also true for milestones?

I'm hoping we can use this thread to share some data regarding milestone sizes since we (or at least I) don't know where the cutoff points are (and how many) after which the coalition mission milestones change.

Thanks for contributing!

Cheers
P.

Note: all of the above applies to plarium.com servers. AFAIK the Facebook servers have different mission mechanics (although some changes might have been rolled back recently).