You won't get the eggs from the Muscovy ducks like you get from the runners.
But runners are hardly worth the effort to butcher them. There just isn't much there.
Can you have both?
Or, if noise isn't an issue, the very best for meat production is Pekin, and there are some lines of Pekin that have also been developed for egg production. 120-225 eggs per year.
My Appleyards give a large meaty carcass and they have a very good rate of laying for a large duck. 200-270 eggs per year.
Right now, my 7 week old Pekins are as big as my 3 month old Appleyards. The Pekin are supposed to be 7 pounds at 7 weeks, but I think a couple of them are bigger than that.
Both the Pekins and the Appleyards are very calm natured. The Appleyard is more lean. Pekins will be fatty if they don't get exercise, but they will put on meat instead of fat if they can move around a bit. My Pekins went from goosh to fit as soon as they were moved out of the brooder and let loose.