texture mods

If anyone knows how to do this please help me or send me the file or whatever so i can start making mods for people who want mods more frequently Thank you to the person who helps me do this in the future whether it's today, Tomorrow, a week, a month, a year, ETC.

I can't recall if this is a known issue with the game or an issue with a mod, but when I can around the map at distances or when flying/at a high height, parts of the map just turn black and disappear, usually in large square chunks. I'm thinking it's an issue with LOD (level of detail) but I'm...