Tides of war battlefield 5

Is anyone else having trouble advancing through the new tides of war assignments?

I hadn’t really tried, thought you had to play a specific game mode.
Little bit confused by all the different pieces in BFV and how they tie in, truth be told.

Will try and progress them this morning and see how I go.
Certainly have made some headway on 2/3 of them already.

Some people on Reddit saying they cannot progress them.
Perhaps there is a bug or only some modes/maps work.?