First of all, im spanish and, unfortunately, mi writtin english is too bad but i try to do my best.
I'm going to direct Final Sanction for 6 player, using the aditional characteres but i dont knwo how to modify the characteristics, magnitude and other stats for the adventure.
For example, for the four basic PC's the standard magnitude for the rebels horde are 40... For 6 PC must be 60?
Similar happens to the genestealers to me.
Thanks in advance, and again, sorry for my bad writting english.