I would agree with Semi. I would till, broadcast, then cultipack. I wouldn't want to broadcast into a firm seedbed. I would want to broadcast, then firm the seedbed. It should get better coverage. I would always place cultipacking as the last option.
I don't ever broadcast seed, as I have a drill. But a drill really does the same thing. It creates a furrow, plants in the furrow, then covers and packs with the press wheels coming along behind as the last step.