I think Mini-Warhead should join the Survivors as a result. He's young and easy to influence. He is an Immortal obviously. Treat him well Massam or his Daddy will smash your face in.
I think the reason behind the weird kill rate is more to do with the quality of the kills. Undeads (not Creepers and their like, they're tough bastards) account for the majority of the kills of the teams mentioned that have 20+ and they aren't much more than a plot device, a plot device that will eat you given half a chance. The Daemons have had to kill nothing but player races so they're kill rate is down and their KIA is up. I think the Britannians have had the hardest time of it. Despite how much I like the VOL I have a soft spot for the Manly Men and Manly Santa. Iunno, they just appeal to my sense of humour.
Anyone care to offer some opinions of what you think of my Immortals?

Not stat wise (I'm not interested in what I should do) just story, setting, plot, facing in combat (which is kind of like stats) wise.