Thanks for the feedback, and thank you for playing! A few things I'd add:
On the buttons and controls: you are completely right, soem turoialisation or even a menu is needed, it was planned, but I did not have time to implement the system.
The map: it's my biggest "regret" with this project that I could not finish the map system. I wanted to add it, and even implemented it halfway, but could not get it to function properly, so one hour before the deadline I decided to axe it.
The 1 is the starting point, but the map should've been rotated to be more clear with the directions. Unfortunately, the time limit got to me (not an excuse, but I have a full time job as a teacher, so I was rather limited).
The packs are rigidbody, but I messed up the collision a little bit, so they are unmovable (different layers). I tried to circumvent that, but then the loot flew away at the speed of sound :D
Also, sorry for the nuclear barrel - it was also one of the last touches, and I failed to tweak the light. There are a few things like it.
On the sniper boss: he hits hard (maybe too hard) but if you can reach him, you hit him harder, balancing the experience - in my head, at least :D
Again, thanks for the feedback! It was nice to see how others play this, I looket at it so much that I cannot really tell if it's good or not anymore :)