1.Starcraft Mod (1)well,first make sure you can make maps use Staredit well,then---- (2)Stardraft,Arsenal,etc. These are things to edit AI,add-ons,well,check out some starcraft editting sites to find more of them (3)Play SC Mods(SC Warcraft,SC Gundam,etc.) 2.Diablo Mod well,I myself don''t know how to do so,you may search at yahoo What I know is that you should have tools to view .mpq :-) 3.Red Alert2 Mods Easy to make one,you just have FinalAlert(map editor) and rules.ini and custom things to do a RA2 mod. 4.In last article(make HL&Quake Mods) I''ve forgot something (1)Have a pak viewer, a sprite viewer,a paint tool(photoshop), a crossfire editor with you,these small tools are really useful (2)Always take screenshots in games,then reserch them for better understanding to level design (3)In HL,use the dev mode(...\hl.exe -console -dev) to play and use some cheats to view current-watching textures 5.Have Passion,this si most important! Have problems,mail to : zhangfan4590@sina.com