User blog comment:Cbird2796/Update - 2.9 Patch/@comment-174.0.244.138-20130527050210/@comment-4632427-20130527053436

There's a new tier of Raiders appearing in outpost invasions. They have different names, but the same graphics as the old Raiders. And yeah, they're crazy-tough - the new Bombadier can one-shot half your formation with a lucky attack, even if you're using well-ranked premium units. I've found Boom Bus stun suppression to be the only reliable solution.

There's also a new generation of Silver Wolves, but I've only seen them in missions. So far.