So I tried the macro, and it didn't work for me. Here's what I did, and what happened:
1. I grouped all my toons together, 10 Bard (leader), 10 Shaman, 10 Berserker, 10 Ranger, 111 SK
2. I stood all my toons in front of the mission NPC
3. I started the macro on my SK
===The following was done...