You don’t want these inside this #if - you might want an #if for each one though (@psychonic?)

The DMG_ defines above are defined the same way

I agree with @asherkin

The ones above were done that way because there was a popular include at the time that had all of them in it copied from the SDK like ours were.

For the TF2 ones, it's very possible to run into plugins where users have manually defined one or more of these on their own due to us never having them. It doesn't hurt to guard them.

Done

This is a nit, but by doing this we eat up lots of whitespace, perhaps we can move the comments inline?

#if !defined DMG_CRIT
	#define DMG_CRIT DMG_ACID /* TF2 crits and minicrits */
#endif

Perhaps even take away the whitespace between each #endif and #if, but I'm not sure if smdevs would like them slammed together that closely.
@asherkin ?

That's actually a good point - they need to be doccomments for the parser to pick them up correctly, and the sanest way to do that is inline using /**< comment here */ (the DMG_CRIT one should change as well).

I don't really care about the line count / whitespace.