Source SDK's Hammer editor is used to make all valve produced games such as CS:S, HL2, Team Fortress, L4D and more
Go to www.devloper.valvesoftware.com
Nope
Counter-Strike maps are "bsp" files. When a server allows you to download them, you receive a "bsp.ztmp" file.
Into Counter strike folder so like C: ProgramFiles Steam Counter Strike CounterStrike1.6 some where in there should be maps folder stick it in there unziped
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Sadly no, since the server technologies are separate entitys, Counter-Strike: Source can not connect to any other game, and any maps, mods, or servers from 1.5 or 1.6 cannot be used in Counter-Strike: Source.nope it cant
Automatically, you download a map from a server playing that map. Otherwise, you can download maps from FPSBanana (link below). Note: Counter-Strike 1.6 and Condition Zero maps work interchangeably.
See related link
No, you do not need counter-strike to play gmod. I don't even have counter strike but i do have gmod. A word of warning though, a lot of the materials and weapons in counter strike are used in garrysmod. Mostly in mods, and maps. It is recommended to have it.
I guess it's in C++ or C# Maps are made in Source SDK
There is no Counter Strike 2.0, but i think Valves new game Counter Strike Source would count. New graphics, maps and stuff like that. It's run on the source engine. What you do is download a program called steam, find the steam store, find counter strike: source there, buy it and it will download. Then you can play :D
That's only for maps, when you create the map the owner of it has to make the objects moveable, If that's what your talking about.
Download a map and add it to your "maps" folder within your "cstrike" directory.