Good job!
Oh... that MGS memories brought back by this game...
I can't wait for the fix for the level 18, since I couldn't "reach the exit point" after getting the documents and opening the door. Otherwise quite good. Don't listen to those people who says this is a MGS ripoff. The music sounded kinda similar, but not the same.
Improvements? Beside the LV 18 thing... maybe some weapons, or a final boss, but nothing else