Unfortunately, I didn't have anybody to play with and can't comment on how it handled as a multiplayer game, but everything else seemed solid for the most part!
I found myself wondering whether a multiplayer game would be more interesting if there was something that encouraged players to prioritise different control points differently - perhaps having control points with a direct line of controlled points back to the base be captured faster would incentivise congregating at a "front" while leaving strategic value in attacking of points behind enemy lines.
There were some items on the map that looked like they could have been intended to be jump pads, but didn't seem to do anything. I'm curious to know if they were intended to have gameplay purpose.
Not being able to play multiple rounds without resetting the server and not being able to invert the mouse made it harder to appreciate/explore the boundaries of, but the map layout seemed good for the type of game I imagine it would be.
Again, I can't really experience the game as intended, but this feels like a fun expression of the optional prompt "conduit."
As Samsai says, uploading files individually is not a great way to package for Linux. It also means that you can't ship with executable permissions set - something you can do if you zip it up or use Butler.