From: Tucson, AZ
If you don't mind, can you open that scenario in the Editor, go to Edit > Deployment, then go to Edit > Set Naval Attrition Divider [pictured], then check the current setting. If it is 10 as seen in the inset, please set it to 100 and then run your test again to see if the results are acceptable.
If this is too much to ask, I will do it and will post the scenario here for you to try.
What Steve assumes is that you already know that you have to save the scenario after you change it.
I'm not crazy, it's our culture that's gone akilter.