Anything with a 100+HP, I just stay away from them. I have tested my SoV's abilty to die easily enough. It works very well.
My issue is the (undocumented) SoV death and Game ending Loss. It seems after 2 SoV deaths, while I still have a growing City. It can be frustrating when you get caught "pants down."
I must add though that I was surprised, but liked the idea, that you can get branded a Murdering B-atch if you Kill recruits without proper cause. LOL
Sadly. I have yet to find the proper good cause though. Maybe the 2 are linked. Hmmmmm 