Nova Prospekt continued addon

Hi there I have created three add on maps for Half Life as part of my final university project. The project is designed to test puzzles in single player levels and how they effect the game play experience. The story takes place the in Nova Prospect. If you could play the levels and provide me with feedback for my project that would be great, and at the same time have some fun! A survey has been included in the zip file. Have fun! You will need half life episode 2 to play the game! If you need a Half life2 copy PM me!