Mission scripting
You can get an idea of API if you open game dlls in the Studio as described here
http://forum.1cpublishing.eu/showthread.php?t=28997
Many examples can be found here
http://forum.1cpublishing.eu/showthread.php?t=26523
Server scripting
Info on dedi server is here
http://forum.1cpublishing.eu/showthread.php?t=22038
Some info on server automation is in a link #7 in my sig.
http://forum.1cpublishing.eu/showthread.php?t=25429
At least 2 versions of server commander are being worked on by different people. Hope they will be released soon.
Any input and help with scripting will be appreciated by this community. Too few people are involved so far.