This was a neat experience! It felt really cool when the whole squad of guys joined up toward the end. I agree that a minimap would be a nice addition (not pathing/telling you exactly where to go, but a vague indicator of what direction to go could be nice). Then again, there was something kind of nice about exploring the ship naturally except when there was time pressure at the end.
Graphics and sound were both solid. The guys kind of slide around and don't really look like they're anchored to the floor, but that's not too bothersome.
The movement and gunplay felt nice to me; I didn't have any problems picking up the controls. One thing that was a little bit difficult about it was that strafing/backing up while shooting was a little bit difficult (move the mouse to click behind you, then move it back to where you want to aim); I'm somewhat more used to twin-stick style shooters that give independent control over moving/aiming, but I actually kind of liked that this did something different with movement.
All-in-all, this was a really solid jam entry. Nice work!