I didn't stream or record it, but last night Dei, Snuffles, Charon and I managed to achieve the most difficult task in Killing Floor 2's halloween event - getting through round 25 of endless mode on hard difficulty in the new Monster Bash map.
The closest call was on round 23, we had a near total-party-wipe. It was an "Up, up, and decay!" round, which means that doing damage to monsters causes them to inflate like balloons until they float away, but if you stop doing damage, they deflate, regenerating their HP. This makes the large, high HP monsters like Scrakes and Fleshpounds even more dangerous than they are normally (and they can often be game-enders even without enhancement). Without a firebug or medic to do damage over time and stop them from regenerating, things can get ugly real fast in up, up, and decay. We had a medic, but Dei died, and so did Snuffles and Charon, leaving me last man standing with 47 monsters still to kill, many of which were the big baddies.
As a berserker, I was at a bit of a disadvantage because my ranged damage from my best weapon (the Eviscerator buzzsaw launcher), while normally considered high damage and bursty, has a long delay between shots as new sawblades are loaded (sort of like a crossbow) and a considerably long reload time after its magazine of 5 blades are expended. That meant that the scrakes and especially the fleshpounds were getting time to regenerate health.
It took me about 20 minutes of kiting and fleeing for my life to whittle down the trash mobs, then deal with the not-quite-as-high-hp Scrakes. The problem was the last two monsters were both full-fledged-and-enraged fleshpounds. Scrakes would go down with a few headshots from the blades, but to kill a fleshpound at this level meant I had to get headshots with all 5 blades in the magazine, then immediately jump in to melee and hope he dies first. This is not always a given because facetanking a Fleshpound - even as a level 20+ berserker, even under normal rules - is usually an express ticket to a pine box. Normally meleeing a fleshpound means you gotta leap in, do as much damage as fast as you can in hopes to cause him to stagger, then get clear before he recovers and counterattacks. But that wasn't an option, thanks to the round's special rules about regenerating while not taking damage.
It was maximum buttpucker factor, and I got down under 20% health a number of times and hand to flee to heal and reload before trying again, but I managed to finally pull it off, and the next two rounds were a cakewalk by comparison (since all dead players return to life between waves), even when it gave us the Abomination for a boss on round 25.
Victory is sweet indeed.