Solid game, below is only constructive criticism
This was a very challenging, interesting game. I did get the DeadSpace vibes, as you descend lower and lower, the situation becomes more and more chaotic, but it was not linear, but rather in jumps when it came to difficulty.
Weapon selection was pretty cool, but made things too easy, as you could restock at nearly every point in the levels. The shotgun and RPG are cute, but are worthless because there rarely is an enemy that requires significant damage, and there are 100s of grunts that require a decent ammo pool to kill without losing health. Thus, I found the Vulcan to be pretty useless, as by the time I started firing, I was already being swarmed to death. Best weapon was the SMG with the damage upgrade, as it was superior to the rifle, and you could shoot 120 bullets without reloading. Not that it matters, reloading was super fast, too fast. Ammo was never an issue in the game, as it could be purchased, and was lying all over the floor. This made it easy as well, and I wasn't forced to conserve ammo. The pistol was laughably useless, but I think you meant it to be like that. Ammo can be used as it is infinite to open doors, so that should be fixed.
When it comes to monsters: It got pretty repetitive after level 3, as there was nearly nothing new, and same strategies were employed over and over again. The dark enemies with red eyes were awesome, great job there. The giant sacs were too easy to kill, as they only fired forwards. They should be given a room to chase you and aim slowly, because they can be sniped from a distance, like the endgame boss. Endgame boss was simple to kill, as I merely had to hide behind a box, peep out, and shoot my ammo in bursts. Coming closer spelt death, and I barely saw him. For me, the maddeningly difficult portions were maneuvering boxes to prevent the turrets from killing you (either too many boxes, or too few), and the night vision level. I'd carefully comb through the area, wait for the door to be "unhacked," and then everything would surround me and I would die. Death was pretty interesting in this game, and I probably ended up playing some levels 2-3 times as I'd keep dying =P
I liked the difficulty, in that if you don't kill the stuff infront of you, you become too slow to run away, making things very tough. It was repetitive though, waiting for the swarm to die down as they came from the hive, just waiting for one, shooting it, and keeping my scope on their nest for an entire minute. The lasers fired in my opinion were too slow. They were easy to dodge. The explosion radius made things a little better, but it was still way too simple to avoid. I think that the radar was just perfect. It was live or die with that thing, and it wasn't too frequent in its pulses =P The game should be made a bit darker in other levels. I also find that the red eyed stealth enemies are too easily spotted, and the surprise wears off after you first see them. Their eyes should never appear, until you're close to their corner. Then, they appear, and they leap out at you. A flaw with them is that you can happily shoot them with anything from a distance, and they won't charge at you. Maybe make stealth versions of the mini locusts?
Plotwise, it had a solid buildup, but too many jumps. There needed to be more of the blue chips, I still don't understand the story. Make it more horrific, with humanlike enemies, maybe a room where you see humans being turned into scorpions, etc. It was just next level, do this, ooh crew is becoming untrusting/what is ule/scary stuff, next level, do this, final level, bodies/enemies everywhere, enemy is a giant baby, what? Plot was lacking, ending suffered because of it. Having CPU to lead you with greentext is cool, but shouldn't be there in last level. Last level should be pitch black like night vision level, its too bright.
The mad rush to elevator is epic in the end, but not if you're replaying. Make it so that not getting to elevator in time = death. I wish there was some ending cutscene, but its okay. It was a solid game, and I enjoyed it! Thank you.