There is no list nor any special method of balancing maps. The best way would be to test it multiple times. When I say multiple times, I mean more than 3.
You can use this Damage Calculator to help you
http://www.staredit.net/index.php?download=1739[right][snapback]192231[/snapback][/right]
I Couldnt Use The Damage Calculator I Dont Have Microsoft Excel On My Computer.