After running WFRP for a couple years now, I have to admit, I feel weak running the greenskins. They're just one category that seems harder to integrate into my Reikland campaign. Undead, cultist, beasts, etc..no problem. I mean, it's not hard to randomly throw monsters at the PCs, but I don't do that much anymore. Greenskins seem tougher because they are not something that the PCs would normally be "talking to."
Any of you have a weakness?
jh