I give you an example . Check in itemdb.
2798,Will_Of_Exhausted_Angel,Will Of Exhausted Angel,4,0,,200,,0,,0,0x00008100,63,2,136,,99,0,0,{ if(strcharinfo(3)=="job3_arch02") { bonus2 bAddDefMonster,1761,50; bonus2 bAddDefMonster,1762,50; } },{},{}
u can add bonus using strcharinfo(3) for exact map script.. or if im not mistaken you can use getmapflag(strcharinfo(3),mf_gvg) if you want to include all GVG map listed in GVG mapflag.