I was just thinking of something fairly unconventional. At 4 pts. the swamp troll is a fairly decent lil beastie. But, usually I am only fitting him in though, when I have 4 pts to spare and need another transfer target or fury battery. So, what if I turned it on its head and made a force of swamp trolls. The passive abilities are nice and with the right warlock, some synergy can be applied. With obvious problems against high Armor stuff, it would not be list for every occasion. But, I am seriously thinking of investing in a half dozen of them.
How about GunnBjorn, for instance? He and Janissa could throw down a couple of walls, taking advantage of camouflage. And naturally, guided fire would have a lot of triggers.
This idea feels insane, but might do it anyway. Open to suggestions of amplifying the general idea with other models.