Here is the list of levels I chose to complete Chapter V. Where I have written [Select], I have been given a choice and this is the level I selected.
Important: If you select different levels to the ones I have listed below, your last level may also be different
(01) Omicron Dawn
(03) [Select] Sanctuary
Card: None (You are not able to select a card).
I highly recommend doing this with friends on LIVE as it is seriously difficult and you will also gain the achievements for completing the Campaign in co-op. I played this with 2 others, we all grouped by the Rocket Launcher (atop the ramp covering the U-Damage). A player stood either side of the ramp, and the 3rd stood a little further back. You'll find Akasha always tries to head up the ramp hugging the wall, using the rocket launcher she becomes and easy and predictable target.
If you don't manage it at first, keep trying. We managed to complete it on our 3rd attempt and won 20 - 8.