Hi! I present to you my map "De_Quadroshock" for "Counter-Strike: Source" (-bomb/defuse mission).
I worked much on this map and hope for you will be exciting to play. -)
I am game developer, but in such way I accumulate experience in level-design and keep fit.
The map is made from scratch and have original concept and design.
Also here are totally destroyable columns. And walls with physicalized destroyable bricks, which can be thrown down.
Plus only for this map I made something like a holographic panorama of an invented secret city (-Hi for City-17, from HL2 ! :) ).

Background story:
An attempt to attack was committed on the underground bunker of a secret military-scientific complex. The government is deeply shocked by this unexpected attack on such a secret complex. Nobody knows how the terrorists came in there. But the first attack was stopped!
Now the second wave of attack is expected, much hotter.
It is supposed that the purpose of the terrorists is to destroy with bombs two points in the bunker:
1. The structural column at point A – above it is located the biological weapons lab.
2. The power generators at point B. Also above is the floor with the chemical weapons lab.
The bunker itself is made up of 4 main parts with an additional central block where a supercomputer is located.
Attention! The supercomputer in the central block was already damaged in the first attack. Avoid electrical discharges from supercomputer.
You can also use the ventilation system for suddenly attack.
And use hot traps – explosive barrels with dangerous objects around them – fry the ass of your virtual opponents!
Powerful weapons and crafty tactics will make you cool and dangerous.
Have a good hunting! :)