I aim to kill please.
And of course no virus ever mutates or gets out of control.
There's a lot of "Fuck You" material I put into AU to mess with PCs. I also added optional rules treating bug spirits' "hive mind" connections as a Rating 4 Tacsoft, the shedim commandos, the Force 10 Shadow spirit, the Legendary-level NPCs, the nerve gas grenade, etc.