- Right click Cliffs of Dover in your steam library
- Click on Properties and then Betas
- Click on the Beta Participation box and select the TeamFusionUpdate
- wait for the update to finish
- you can now play, however the game will need to be launched as admin or the game will crash.

(i just go to browse files and r click on the exe to run as admin. there is probably an easier way to this. bruh.)