OK so DP goes by the name of Vevzar and had
WS BS S T Ag Int Per WP Fel Inf PR
65 60 50 60 60 60 60 70 75 130 6
Demonic 3, Wings etc.
Group landed (1 reroll used) and set out to find the book. A good roll to navigate got them overlooking a large(ish) room that looked like it was used for demon binding and Magos sensing DPs aproch went down, Renegade hides and PP drinks and does drugs (then rolls stupidly good on toughness and stays upright). DP shows up and attacks Magos (who dodges), Renegade shoots DP ( I used DoS vs DoS as DP had a dodge of 110 when all's said and done) and 9 damage - 6 TB - 3 Demonic = ping! Magos hit with his Multi-Melta for 20 damage and PP used the stun rules to show that cheep tricks work.
Next round Magos is oneshoted into crit by Hellish Blast, DP takes more Multi-Melta damage and then moves the wall to keep PP and Renegade out of the fight.
LoC shows up and Magos attacks it, as does DP.
DP had set up this room as a trap for LoC and used the book and the room to start binding him, says to Magos "Keep him here and you will live" and flys up, brings a sword down into LoC and starts binding him into it. The others to try to send a call to the demon they have the Dark Patronage with and offer the number of souls Dr Evil would want for an exit and pass a -10 infamy test (I would have said -20 but a number that high has it's own power). More rolls than I would call fun later (not too many it was just the same 3 things being rolled 7 turns in a row) and DP with the help of Magos have bound LoC in 3 swords that occupy the same place and just how ready DP was for this is seen (the sword went into the floor and more binding happened) and DP took Magos somewhere he couldn't make trouble, got the other two and explained that the demon they had Dark Patronage with was paying for their release and dropped them off by their ship so they could see that he had given it to the Word Bearers. PP (who wanted to start a new character as he hes lost his ship) started shooting and died.
DP took 50 damage, used 4 rerolls and I forgot to use his Fear rules.
Thank for all your help guys.