amazing
there is one glitch i have found when using the shotgun. As soon as you start reloding, pres esc and the game will pause but you will contunue to reload. as soon as the reloading finnishes, you can unpause and be back where you were with a full shoptgun.
for making the sequel, it would be amazing if you actually got to go around and search for weapons and survivors, and maybe even make a storyline out of it