Counter Strike 1.6 Mapping
Mapping Resources
Tools
Hammer Editor 3.4
(original editor for GoldSrc)
J.A.C.K. Editor
(improved alternative to Hammer)
ZHLT Map Compiler tools
Improved FGD file for Counter-Strike
, use this instead of halflife-cs.fgd
Wally
(WAD file editor for custom textures)
Guides/Reference
Valve Developer Wiki
The303 GoldSrc Mapping tutorials
Custom Maps
I will be working on some epic custom maps for CS1.6