Six months is a gen pop number for Achilles. Nearly every Achilles injury a related to athletes has what press would call a "setback" but doctors would consider almost expected. Its one of those injuries that you feel great (and things look good) and can get cleared, but repetitive stress of playing football and how you heal (or lack) means you have to retreat the injury (disclaimer - not a doctor, but one put me on shelf for a year, so know it well).
A study on football players show for those that are actually able to return, 11 months is the typical recovery. Caveat on this study is that it is old, but my rudimentary understanding is that things haven't changed that much).
http://lermagazine.com/article/return-to-football-after-achilles-tendon-rupture
Another more recent article that shows 36% of players never play again
https://www.si.com/edge/2015/04/16/rothman-sports-medicine-achilles-injuries-kobe-bryant
To summarize - for football players, I would expect 9 months minimum (obviously there are exceptions), and don't expect the same level of power/push off. As stated above, injury particularly bad for skill positions.