I present to you the map "cs_lockdown_hotrap" for "Counter-Strike: Global Offensive". This map is created on the basis of map from "Half-Life 2: Deathmatch". I removed the nonworking elements and made a playable map for "CS: GO" & "CS: Source". So here is everything you need to play, plus special ambient sounds, new special decals and even new voice sounds.
Also I added a tactical places for snipers or for a sudden attack, plus some "landmarks" and even a map for radar, plus a 3D sky, opened additional locations, created new areas, placed a lot of new objects and edited entirely the navigation path of bots. Here on the map you will see horror places, but also fun places and elements. And of course, I created from scratch a few multilayered destructible columns. ;)
Also for this map I invented a special gameplay element, which I named as "Hot Trap" (for this, just I use existing physical objects of "Counter-Strike: Source" and "Half-Life-2").
I was able to return the original sound environment from "Half-Life 2" and also inserted more sounds in the general environment. - Now the map has become even more impressive and frightening. :)
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Credits:
Source version by Valve.
Dmitry Ghervas ("Green Way Interactive" studio) - ported/edited map of "Half-Life 2: Deathmatch" to "CS: GO" & "CS: Source".
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Story:
The terrorists stormed the prison and freed the other dangerous criminals. They took as a hostages of some prison staff who survived. In order to prevent the antiterrorist forces to easily enter, the terrorists completely mined the whole prison with explosive barrels, thereby making the "hot traps".
Use these traps against the anti-terrorist forces or against the terrorists! But be careful that by yourself don`t get into the hot trap. And sometimes some bots can blow themselves these traps and may die (sometimes should clear the way for them).

I hardly worked on this map. I hope for you will be exciting to play.
Have a good hunting! :)