First of all, thank you for your comment ! I'm glad you enjoyed the game in its current state and hope you will like it when it's finished too.
I wasn't aware of the magazine exploit but I know what caused it, so that will be patched in the next demo. As for your other remarks, I take them into consideration too ! I agree with you on most points, especially the combat that really isn't that fun right now, I need to spice it up obviously, but I hope I'll be able to. As for the map, I have already made a few changes to the first version that is linked to this post, so it will definitely be more interconnected and maze-like in the end.
Either way, thanks again for letting a comment, it means a lot !