I used a balanced party for pretty much all of the CoP missions, and it worked fairly
well.
Pld + Drg + Drk + Rdm + Whm + Blm was my group. So I would get Tank + Healer +
Support and then fill out the DD with a balance of Magic and Melee.
Really on this mission if you use a balance party, and all members have all 3 anima,
you shouldn't have too much trouble. (no reason for everyone to not have all 3
anima in my opinion because they are so ridiculously easy to farm and really help out)
Also, as a suggestion for this mission, you didn't say if you made the climb up to the
fight yet or not, but depending on the group you go up with, you might want to do the
climb one night and do the fight another night. You can warp directly to the floor of
the fight after you have done the "climb" and beaten the 3 NM. When I did this
mission, we did it all in one night because we had a big group of LS members needing to
do it and we went up with an alliance. The alliance made the 3 NM on the way up
pretty easy, but I can see a smaller group taking a bit longer to reach the top, and I
have heard of people using animas on those three NM and needing to farm more for the
BCNM fight.
If you want a guide for CoP missions, I used this -
http://promathia.runtimerepairs.com
I found it had very helpful tips and advice.
Good luck
