Couldn't write a comment and now I can't post a comment so I'm writing it here[]
> "The explosion radius is normally 1750 hammer units in Global Offensive; on Vertigo, the explosion radius is only 400 units."
Didn't the author mean the explosion radius on Vertigo is 1400 due to the maximum damage being 400? There is also more than just Vertigo with 400 damage, some have 450, Inferno seems to even have 620 since a more recent update.
Edit: It seems GameZone1 changed this, thanks :)