StoneyDoG

I was able to fix it with first validating game cache and then run editor placing one player in editor first and load. then i tried multi player and it worked...So start arma 3 click on editor then continue double click on map pick class then preview..then start multiplayer like normal...

I posted a fix for it the other day...http://forums.bistudio.com/showthread.php?160717-FIX-for-ARMA-3-multi-player-crash-Windows-has-ran-into-an-unexpected-problem

Im glad it worked for you bro...

Dev build doesnt work..start parameters doesnt work...validating doesnt work..and reinstall doesnt work...i played this game from day 1 alpha with no problems then out of the blue two nights ago after a server restart i have this issue...This blows!...