Thanks for the support people, I really appreciate it!
@Rick Astley = Just to let you know, I am not recreating those maps from scratch, Those are the map files directly ripped from Nightfire, But all of them has a multitude of bugs, Obsolete entities/props and incorrect lighting.
The Caviar Factory is the map I am currently working on, However, It was very broken, Took me hours to fix the crusher under the trapdoor, But I got it working after about a hundred recompiles, Hah.
This map isn't too GE:S friendly, Notably because of all the grappling hooks that helped navigating around the map in NF, Thus, All access to the water has been blocked, And ladders/bridges will be added to several areas to suit GE:S gameplay.
I still have a lot of work to do on it, I should be done within this week though.
As for Fort Knox, I have looked at it quickly and it doesn't look too bad, I probably will look further into it when I'm done with Caviar.