[whpalmer4]

If you want your checklist to repeat as a unit, set the project to repeat, not the actions.

One thing to watch out for is that the checklist for the next week won't show up until you've marked everything complete (including the checklist itself(*)). If this might not always happen on time, you might want to have two identical checklists, set to repeat every 2 weeks, with one starting a week after the other. That way, the alternate week's checklist will become active on time, even if you didn't get every last action done from the previous week.

(*) There is a box in the inspector that you can check to have the project complete itself automatically when the last remaining action is completed. There is a corresponding setting in the OmniFocus preferences that turns this property on or off by default for newly created projects, too. Probably don't want it on by default for new projects unless you always fully plan them out before working them.