If I may wright a suggestion. I think although urin is nice it would be nice to see people in there that are terrified it would just be a nice concept also powerups it can be hard going through the map. Also although i can already do this by applieing other mods. Weapons after all its not the dude in portal its portal meets postal.

Some more suggestions

1: Make the portals bigger, they are a bit of a hasstle to deal with

2: Add the portal gun sounds when firing

3: If you are up for it, add a skin mod to it to make the postal dude look like chell

4: AND MOST IMPORTANTLY, make a mod that is purely the gun itself so we can use it in other maps.

keep up the good work man, I enjoyed your level.

a video demo of the portal gun?