A few comments

I will get 5 wraithlords as they are an ultimate threat to the imperium and it will screw your armies. Now i know that i need to tailor my armies to take on all aspects on the imperium as well as the 'nids, however in the likely event that it ends up with me, john and marc teaming up against greg or something similar, then i will just have to join with greg and that means i will be against john. Anyway in that case, i am looking up the weaknesses of the s-marines, imps and 'nids so i can have a fighting chance. i leave you with an nice conversion that i might try. *evil prolongued cackle*