I've found the battle factor number to be fairly accurate.. Once I 'rolled' a 7 - 7, (1 to 1), and the losses on both sides were exactly the same (2000 even).. 15 - 6 odds (~2.5 to 1) produced ~2.5 more billion dead per attacking billion..
So, by those odds, the 42 to 2 should have only wiped out 16 to 23 billion, not 150. It sounds to me that something's a little off in the battle Titanwarrior experienced. (maybe he was fighting genetically-enhanced, near-ascended Tor

.