This beta works only ISDF vs ISDF.
I am working on all custom AIP's.
Give me some feedback on how it worked for you.

Installation:
Create a new forlder in your Addon/Missons/Multiplayer 
directory and name it "MPI Fortress", then just unzipp those
files into it.

Done.

Have fun and let me know if it works ok?

-pastell
