does anybody have a tutorial for how to make custom maps? or a very detailed written tutorial? thanks!

Google, youtube, google some more. Your best mapping tuts are probably from a dude named blackjackjonnyy, but he could be a bit advanced for someone that has never even compiled a map yet. To start, you install mod tools and get a script placer. Start with a sniperbolts map, and go from there. Once you get a basic map working, its up to you want aspects to learn and develop. Familiarize yourself with the language. I'd say use ZK tuts cause they are simple, but they are not always correct. They can get you though the beginning part of learning though, I used them.

‏‎https://www.youtube.com/playlist?list=PLwlA8xZdjWAg0o9EGpticKPRm8LYZ6yk2‎

https://www.youtube.com/playlist?list=PLwlA8xZdjWAg0o9EGpticKPRm8LYZ6yk2

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Oh, yeah, I forgot about that guy. I looked at a few of his, I think they were pretty good, wish he was around when I was starting out, lol.

Lol for beginners ZK TUT'S are good. But after them these were good.