I have the modules , and they have been inspirational althoughj I have not played them per se.
As for GP s comments about irregularities in our T2K campaign -
-alternative religions NO COMMENT
-voodoo UNCONFIRMED
-experimental government experiments NO EVIDENCE TO SUPPORT THIS CLAIM
-aliens HEARSAY
-and the list goes on I DONT RECALL...
but I'd rather he tell about it though I TAKE THE 5th
Targan - the evilness of your players sound like a common theme in campaigns were the party gets the upper hand -i.e run a cantonment and have some power etc .Mine certainly went off the narrow path so to say and waged war on eachothers units,imprisonment,assassinations attempts and actual murder and all sorts of bad violent behaviour. NPCs were abused in more horrible ways.
My advice is short : Death stops the mouth of any troublesome PC.
I dont mean to force your will all the time-just let the baddies face the statistical results .X number of killings leads to x number of vendettas -and play all those firefights out with increasing ingenuety from the attackers.
And of course-dont be shy to use WMDs.
( pen and paper style folks ..pnp..)