Too easy. Maybe because it's the test server.
On my 3rd run I died sometimes just because I went *extremely* careless. Sometimes I didn't even heal between rooms. And if one craft equip with max UVs, it becomes just some swing to kill some jelly.
Most important, I had some issues in arenas: 2nd and 3rd waves of monsters didn't want to appear. I had to wait around 20 seconds to let em spawn.
New monsters are funny. Maybe it's a bit pointless the fact that shiedling it's coumbersome.
Were you running C42 tier 2 or tier 3?
Are you taking advantage of the oil immunity bug?
These would be helpful to know.
It would also be helpful if you changed the title, to "C42 feedback round 2" or something of sorts, since some people might confuse this with pre-nerf and just assume you were abusing oil immunity or something.
Wether you found this mission truly easy or truly difficult, it is hard to tell without the above information given.