ok thanks Could you give a guide about to test an item in game?

Another problem How I can make an item for all class?

Ok thanks I will report my progress later...

How I can decrease polygon count without decimate modifier option in blender? Also please reply my another problem: http://forums.steampowered.com/forums/showpost.php?p=34953304&postcount=2635

PS: I have 9000 face count