Are you supposed to walk if you have mild achilles tendon pain?

Pain is your: Body's way of telling you to "shut down" or risk further injury. I would recommend you rest it. Ice it. Try using a heel lift...

If its truely: Mild you should be able to wak but be slow until you feel normal.

Yes, but carefully: You are at a risk group for possible rupture if you are male. I'd recommend continue walking but to see a physician about possible preventive steps from possilbe rupture. Also, ice the area to decrease pain and swelling. Hopet his helps.