Ryamore was one of Dooku's men; he knows about trying to form a military assault oin the Republic, not the Emperor's Ultimate plan. Cannes is more into it than Ryamore is and even he doesn't know the true nature of it all.
Helkin just knows that things are changing around here.
But all believe in the 'New Order' project (as mentioned in both games), even if they are in very different parts of it, and might well hate each other.