genesis, in order to better test the mp functionality, you can use the arma2oaserver.exe to host a 'dedicated' server from your computer, then join it with your client. Your scripts will then act as they would in mp.
JIP is a muther fuckr from an editing standpoint.
I had to set it up yesterday in order to play, so I have the cfgs necessary.
this link was helpful to me
http://www.kellys-heroes.eu/files/tutorials/dedicated/
for arma2oa make sure your reporting ip info is
Code:
reportingIP="arma2oapc.master.gamespy.com";
let me know if my server rpt file after playing version 2.15 is of any use..