Hi, thanks all !
About the chain mail , i use noise and choose a tileable alpha.
I use the process seen here http://www.zbrushcentral.com/showthread.php?161159-ZBrush-4R2-Betatesting-By-Geert-Melis&p=892576&viewfull=1#post892576
The rest is extract mesh, and thnaks to amazing dynamesh, sculpted. For now 100 % zbrush.
here are some progress:
And a paint over to test some acessories