Hl2 maps in CSS possible

[importon]

While playing HL2 I couldnt get over the notion of how awsome it would be to be able to have a counter-strike multiplayer battle in almost any one of the city17 maps. I am not much of a mapper, so here is my question. Would it be exeedingly difficult to convert a HL2 map to a counter-strike map. And if not would someone please convert all the maps in HL2 to be playable in CSS.

 

[Spartan]

They can't be converted because

1) They are in bsp format which means that they would need to be decompiled, which usually screws up the level somewhat
2) They are Valve's property, and reverse engineering them (except for personal use) is forbidden
3) No one has even written a decompiler

 

[bliink]

They can't be converted because

3) No one has even written a decompiler

Not for the hl2 format bsps, but there are a few for hl1 .bsps IIRC