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Is it possible to make a story with the last room have say 4-6 different bosses/AV/EBs in one group...similar to the LRSF last mission and have that groups defeat be the mission complete goal?
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From what I have heard (haven't done this, myself) there are two ways:
1) Make a Custom Group that contains only Bosses. Then create a Boss encounter and set both the boss and his surrounding allies to that Custom Group. This should force the whole group to be Bosses. (Although you might want the Boss himself to be from another group so you don't duplicate him)
2) Use the same technique as above to create a Patrol. (But I think a Patrol can't be a mission goal)
Unfortunately, neither technique lets you choose what Bosses will be in the group. You can probably be fairly sure you won't have any duplicates by making a large enough Custom Group, but you can't say, "I want these five Bosses to be the final encounter". If you tried that, you would likely get a couple of duplicates instead of the ones you want. Or that's the way I think it works.
3. Same technique with an ambush at 75%...unless you can make one at first damage, I forget (also not a mission goal).
Dec out.
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3. Same technique with an ambush at 75%...unless you can make one at first damage, I forget (also not a mission goal).
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Oo, yeah, cool, he calls in his friends. 
It sort of satisfies the idea of a mission goal, only just the leader of the team needs to be defeated.
Is it possible to make a story with the last room have say 4-6 different bosses/AV/EBs in one group...similar to the LRSF last mission and have that groups defeat be the mission complete goal?