Dissabling Steam-Cloud-Synchronisation for Cliffs in Steam should serve you well.
It's a known issue with Cliffs of Dover

Hi Mikey, as Kai Lae pointed it is mandatory that you join us on Teamspeak to get things sorted. You will get the campaign server password when you fly your first campaign mission with us as a guest. In this regard "guest " does always mean that you want to fly your "personal ACG testmission" within...

Just try it with us online. I have shity Internet as well- 900kByte/s down. Flying works fine for me! As a side note: For the case that You also speak German. We have 6th and 8th Staffel to offer in ACG! Colabaroteurs are also welcome as well

I want to add that ACG does not feel like competing with Servers like ATAG, because ACG campaign does offer something completly different in experience. As far as for 6./JG26 and 8./JG6 we enjoy ATAG for random training flying, but in the end we look for the Immersion that only ACG campaign can offe...

Why does that Friedrich cockpit look RLM02-ish to my eye?

I'm in!

Do not forget that the russian planes all need manual mixture control

Pariah wrote:Atreides flies so fast the cowling falls off.

Reminds me on finishing some builds of mine

be aware that the kit moldings date back to the 70's