Cool, will be helpful!
There's a small mistake in your video
$surfaceprop doesn't refer to the texture file name, the texture file name is already embedded in the smd when you export it, so the compiler only cares about the directory where your materials are.
$surfaceprop defines the physical properties of your model, you'll get bullet impacts based on that.
https://developer.valvesoftware.com/wiki/Material_surface_properties
great video though, wish we had this 10 years ago :v
Great tutorial, just when I was about to make props with blender, so perfect timing.
One thing might wort mentioning:, in your 3d view in the top right there is a small + sign.
If you click this the properties panel will open (you can also press 'n' on the keyboard).
Here you can see the dimensions of the object and also type them in (I was to lazy to make a red circle):
I think that's a bit easier then your add a box and scale it to that box method.
Btw, if I want a bump map to the crate, can I do that just edit in the qc file and recompile or do I need to do that in Blender as well?
Cheers @clankill3r! Nice trick there, I have no idea about using Blender so that's good to know! 
I haven't tried bump/normalmaps on props yet but to my understanding you won't need to do anything in Blender OR in your QC script file. Just make sure that the material name in Blender is the same as the VMT text file in your materials/models/[mapname]/[propname]/ folder. Then use that VMT file to put in your bump/normal filename and parameters (like I did in the first part of the tutorial series where I talked about custom materials). That should work in theory! 
It's not really a trick, it's the normal way of doing things 
what you did was a trick
About the bump map, I will try it soon when the time is ready. I need a pc first...
Bump maps with models are no different than world textures. All in the vmt and nothing to do with the 3d program.
Also would like to point out here a program called crowbar. Doesn't seem very well known but is an excellent tool for compiling your .qc files and decompiling models http://steamcommunity.com/groups/CrowbarTool
Also @NihiL is there a reason you called the file qscript.qc instead of corrosivebarrel.qc?
Excellent tutorial though, this is probably the hardest part to do with source and there is so little up to date information about it and is good to see it put into a way that everyone can follow.
Thank you very much @Skybex, great to have a well-known mapper in this thread haha!
Crowbar sounds great! I've personally used Wallworm before for 3DS MAX which I also liked. Essentially I based the tutorial on a steam guide that someone linked and requested a video tutorial of.
The qscript filename doesn't matter of course but you're right, it's a model-specific file so corrosive_crate.qc would've made more sense!
Thank you for the kind words, it means a lot to me and is very motivating!
I just did your HAMMER: Advanced Tutorial #6 Part 1 Custom Textures tutorial and I dont think you have the normal map working, only the speculair map.
Atleast I hope that is the case, else normal maps look really flat in source
Edit:
I made a grey texture and used the normal map from your tutorial and disabled speculair in the vmt and the normal map does work. I only expected a bit more from it.
One note do, you use the normal map texture as a speculiar texture and have set that the alpha channel should be used. But the alpha channel is complete black. I think it looks a bit strange cause now you have a lot of specularity on places where you don't expect it. It would be better to have a specular texture as well. Now it might be a bit misleading. Still thanks do, great tutorials
For your tutorial HAMMER: Advanced Tutorial #6 Part 2 Custom Models (Props) your engine path is wrong.
Check around the 8:42 mark, after you set it it's still red. You have to set it to the bin folder of 'Counter-Strike Global Offensive' so not of 'csgo'.
For me it is:
C:\My Programs\Steam\steamapps\common\Counter-Strike Global Offensive\bin
But I readed that having this right is more important for DMX then SMD.
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less important: I just figured out that if you do a scene export you end up with the same file. So you could have multiple models in 1 file and do a scene export to create multiple smd files I think. I thought you might like to know.
My first source model
If you want I can look at your next tutorial before you release it to spot any errors etc.
Keep it up dude!
Quote from FMPONEKeep it up dude!
Thank you very much, FMPONE, means a lot to me!
Hi, I saw on de_santorini FMPONE made some columns with displacements, can you show how to do that?
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