de, awp, fy?

[Valor5]

What exactly do these mean? Not only those, but every single one of the maps have some sort of two-three letters before it. For the longest time I have always wanted to know where these come into play in maps. Are they the creators, or what? Any help would be strongly appreciated...

 

[nagual678]

i've always assumed fy = **** you, given the style of the maps

 

[Koffern]

de = defuse (with bomb)
cs = with hostages
fy = fun
awp = awp only (fy maps with awp only)
aim = aim practice

 

[Valor5]

Thank you Koffern.

 

[82ross]

theres also
as_* (assassinate maps)
es_* (escape maps)

fy_ does = ****you!