Making Breakable Doors for CSGO

[MinorThreat]

Can anyone explain to me how to add a breakable door to my CSGO map in Hammer editor? I'm talking about the model doors, as seen in nuke and assault.

[Fnugz]

 

[Vaya]

I'd suggest you get in the habit of pulling official VMFs apart to work out how they are built. You can learn a ton this way (and also see stuff that you would of done differently/better ;))

[MinorThreat]

Thanks for your replies. I don't know why it didn't occur to me to look at the nuke example VMF to see how it was done. On the subject of official practise, I recall seeing an article somewhere on the internet demonstrating how Valve build a level. It focuses on a Left for Dead example map and it shows the various stages of development, including a stage where the artists draw over some screenshots. Does anyone know where I can find this page? Bit of a long shot maybe...