Ok, this? This is AWESOME. Because this is war, this is Evil Wizard Gone Mad, not that puppy-kicking batshit of 'looming' which happens in canon. Because really. They mostly just loom and scream a little.
Your guys are bad ass. The only thing which made me wonder a bit- blood traitor or not- why kill off purebloods? I mean, you can steal sperm easily methinks. But we can chalk that up to insanity, I guess.
NO FLUFFY MPREG PLEASE. I'll remind you that it took about 1,5 bottles of vodka and a shitload of rum to get me to venture there. I'd rather not see any 'mmkay, let's have a baby now dearest, and we'll cock-feed as we lack other portruding bits'. *shudder*