Intro level to those pesky gopher bots. Not really all that difficult though. The level seems so focused on those that they forgot to add much of any actual challenge.
The one tricky area is the area containing the yellow key. Each side room is focused on one type of enemies, with a room being devoted to cloaked lifters, heavy drillers, light drillers, and red hulks. Hugely problematic when they start roaming, but there's abundant cloaking devices to be used.
The rest of the level is pretty simple. Abundant drillers, but they're positioned in easy spots for corner sniping and homing missile lobbing. The area with the red key is ridiculously simple, relying almost completely on winding hallways and advanced lifters, but as long as you're paying attention, they shouldn't do any severe damage.
Currently, SpootyBiscuit has 40,820 views for Descent across 35 videos. The game makes up 5 hours of published video on his channel, or 2.40% of the total watchable video for Descent on SpootyBiscuit's YouTube channel.