got bored, googled Quake1 and found....

[Mindf!3ldzX]

golden_boy, I don't really have a choice. And the reasons are too convoluted to explain.

I do what's possible for me.

That's what matters. Tools are designed to make a job easier, and as long as the tools you are using are getting the job done!

[Ebisu]

you'll probably use Unity or UE. And those engines don't have good support for BSP brushes because they're outdated.
.

While it may be true that bsp stuff is outdated, it's not an inherently bad solution to making maps. While it is an old method, with the use of modern tools you can do so much with bsp based games, and not only that, it's practical.