QUOTE (Larme @ Mar 22 2009, 10:12 PM)

I agree, the Infected power (p.289 SR4) requires the critter to drain you to 0 Essence to infect you. Cyberzombies can't be essence drained, so they can't be infected via the Infection power.
As for someone who's already Infected becoming a CZ, the problem I see is the Magic rating. CZs say that their magic is set to 1, and it can't be increased in any way, but it CAN be decreased. If it becomes 0, they die. An Infected's max magic is equal to their essence. Thus, an Infected with Essence of 0 or less would have their magic reduced to 0. Because a cyberzombie with magic 0 dies, and because an Infected's magic can't be higher than their Essence, the two qualities are incompatible.
The fluff part on page 146-147 of
Augmentation talks about the Ordo Maximus (predominately HMHVV led powerful magic group) is playing with cybermancy. They say it possibly started as a test to find a cure for HMHVV, but turned into something else.
I can't remember too well, but somewhere else when it talks about Ordo Maximus, HMHVV, and Cyberzombies, I could have sworn it said something about Infected not being able to go through the process. Can't find it though, and it could have just been an extrapolation from fluff...
Besides, the incapability of gaining Essence coupled with the Essence Loss of most Infected = Dead Infecte-Cyber-Zombie in at most, 1 month.
However, a ghoul CZ would be a decent choice. They don't run the risk of losing Essence every month, and bring their own unique powers to the mix.