Great stuff, been waiting for something like this for a long time!
I do however have some suggestions and bugs to report, so I'll list those below.
1. Crosshair scaling: would be much appreciated if the crosshair was scaled just like the rest of the HUD.
2. Widescreen compatible FOV: currently the FOV doesn't compensate for widescreen resolutions, so you have to increase the FOV to match the original 4:3 vertical FOV.
3. The text sound in the menus is a lot more noisy and rapid than in v1.13.
4. Game sounds still play when the game is paused in the menus.
I know this is based on leaked code, but I think some sort of page for submitted suggestions and reporting bugs would be much appreciated.