How much Running Prep is enough to make it through OCS?

29 Male Prior looking to go to the summer class possibly. I've been running about 12-16 miles per week(5 runs per week, 2 long runs, 1 intevral, 1 tempo, 1 recovery) for the past 2 weeks following an OCS Prep Plan. I've heard that 12-15 is the recommended amount to be comfortable running before heading to OCS, but I've also heard that 9-12 is enough or even less.

All I know is that you need a 24 minute 3 mile (I'm around 22-23) to get inducted and then survive from there. How much is too much or too little for weekly milage?

Also if anyone has tips on how to recover back from being sick and taking a few days off, ill take it!