Bumped into Ari a few minutes ago, her TSol and my HSol had some fun introducing the Collectors to the concept of *boom* headshot! Well, more *boom* everything-shot in Ari's case, the scorpion with marksman is real messy. 
It got a bit fubared near the end where I got beaten into a corner trying to res one of the pugs who'd gotten downed trying to get some ammo. I really shoulda used a missile first.
I ended up completely dry of consumables by the end of wave 10, partly because of that, and partly because of my bad habit of rage-gelling. 
Then Ari disconnected on wave 11.

I got splattered by a scion. The other two didn't survive 30 seconds. Game over.
So I messaged her and made her finish carrying my scrubby butt all the way to extraction in another game or two, and I even got to play with frost again as a bonus!