Well, I never actually found that file, either. I ran a search and found a thread where people were talking about it (possibly the ArmA2NET thread? Can't remember) but I ended up just creating the file myself.
This is what I put in it (based on information from this thread: http://forums.bistudio.com/showthrea...pts-WIP/page11):
Also, the MSO[date].sqf file is buried in the MSO mission files folder. I can't remember exactly where since I'm at work, but you have to go down a few directory levels to find it. I think it's in like MSO\Modules\PersistentDB\?Code:# Put each database connection you want on a separate line # For an example, see the following #databasename,ipaddress,port,username,password # arma,127.0.0.1,3306,arma,password