Hi, thank you for your feedback.
Un-automatic SMG is a gameplay choice I made, of course it is simple to make it automatic but I won't ;). That's a balance issue, automatic SMG would have been too much powerful...
For the rest, I consider this game "done", with all its defaults and lacks, it's my first game (and I am proud of it !). I'm working on a second game (a top down shooter too), exploring different ways of basic gameplay.
Have a nice play !