The map has some pretty interesting designs and assets, but felt a little unplanned, lacking in immersion and poorly programmed, as the swarm is lacking and the objectives feel pointless and only serve to stretch play time alone.

I think the map has potential honestly, and could be made pretty interesting, but overall it just feels unfinished and without proper uses of the swarm, it felt too boring and easy. It doesn't feel bad, just underdone, with some work it can be made to be much better overall.

Well, hush my mouth, now it works! Thanks for the response

I tried it single player, but I'll give it another go

Just tested medical gun works fine on this map. You probably were on some server which didn't allow medical gun and those settings saved. Subscribe to map, restart the game and see that medical gun works

Downloaded, and suddenly, I noticed that I could not equip any medical gun, on this map or any other. Don't know if that's a bug or a feature, but thought to give a heads-up.
Unsubscribing fixed the issue anyway, but that's a shame, since the map looks really nice.