Carry
Been a long time, actually, since I had to carry a lobby. But got a refresher course last night on Glacier/Reaper/Gold.

Carry may not be the right word. The game went relatively smoothly for 7 waves, despite the fact that one player was a brand new human soldier who constantly faceplanted (I revived him as much as I reasonably could, but half the time he was over in BFE, so...) and another was a typical heavy melee Juggy. There was an Asari Infiltrator there who was keeping up with me with relative ease (I was a Batarian Soldier).
But then everything went to pot on Wave 8. Juggy kept trying to tank both Banshees and a bunch of Brutes. The human soldier decided standing right there was a smart idea and kept dying. Juggy would then stop heavy meleeing to revive the soldier which, while noble, usually meant the Juggy then died while the human got sync-killed by the Banshees Juggy had been tanking.
The Infiltrator apparently rage-gelled their way through all their medigel because suddenly, when they'd go down, they either bled out before I could get there or got stomped pretty quickly.
So, Wave 8 ended up being mostly a solo. Wave 9 repeated the same thing, only everyone ended up dead pretty much immediately. At least for Wave 10, they were able to stay up, get the objective done, and finish off the enemies. But that was a long Wave 8 and 9 for a rusty returning player.
Extraction was hilarity. We all ended up in a dogpile with two Banshees and a mass of Brutes in the dark upstairs lab area. Like, blocked in so as soon as you're revived, you're being tossed around between Brutes with zero ability to control your character before going down again. I don't know why, but I decided to YOLO my way through my remaining 4 medigels trying to get out of that blockfest. Gel, move an inch, downed. Gel, move an inch, downed. The third gel, I somehow squeezed through a tiny gap by some random miracle and hauled butt to the LZ with about 8 seconds left and 1 medigel to spare, getting a lone survivor. Haven't laughed that hard in aggggggggggggges.