I agree totally. Having scavenger is also nice in any mission where you score points for looting panoplies. I find it comes up quite a lot. I've also had bandits go on antenna smashing sprees in destroy objective missions. Having infiltrate,. Ma2 and a DA weapon makes them pretty good for this. I wouldn't say bandits are an auto include but they usually pull their weight for me. Plus they have one of my favorite models in game.
As a Haqq player, I personally hate CrazyKoalas. Since 90% of our models are LI they drop like koala droppings form a diarhetic koala. Its not a pretty sight. The only way to use any of our sneaky models is to ditch the CCW and switch to a knife just because its silent. But our chances of damaging a target drops quite a bit.
For vanilla, how about a Krakot renegade with red fury? He ignores isolated, shock kills dogged, b4 will solve smoke dodge, etc.
SMG also has shock, but harder to get out of CR range. Jammer immunity lets you use the t2f trick to get to CC even without smoke. I've taken Krakots on ALEPH they are great units.