On the subject of flame 25 in a 10 man guild, you can easily kill him with 4 demolishers with 4 gunners, no shut downs. Im fairly confident that i could do it 6 man with 3 demolishers, but i usually end up with 8-10 friends interested in a drop off of him. Its actually harder to clear through the trash to get to him than the fight itself, a few people may lose vehicles and die along the way, but once you get to him, you have the 4 drivers keeping a ten stack of the debuff on him, and the 4 gunners do nothing but shoot down and loot pyrite to them. Its kind of silly how easy it is, once youve done it once.