Thanks for playing into it xDD um... so the reason why the game is so short and easy is very simple. I didn't have enough time to balance the game in a satisfying way and create a good level that would utilize the mechanics to their fullest. I think I said it in some other reply, but I think it took me around 24 hours to figure out animation controller (I don't usually make 3d games), moving and bug fixing the out of map clipping after u crouch or crawl and standup.
But thank you for enjoying the game for what it is! :D