Does Fallout Tactics have an editor, and if it does, is it easy to use? Thanks

Yes, Fallout Tactics has an editor. Whether it's easy to use is a matter of personal preference. If you have some experience with different editors, you'll learn to use it quite quickly, but it requires a lot of effort to create more advanced content. If you're new to modding, you'll probably have a hard time. You should check the editor by yourself.