[BHD:TS] Editing Problem

[Lunaticc]

So far I uploaded 2 of my maps. They are simple created by editor v2.06b. now I got better editor and I already edited music for my third map. However I need help with in-fight conversations. I want to make people talk like ,,Approaching LZ in 10 seconds'' and stuff. Can any of you explain me step by step how to do that. Just one example so I can learn on it. If there is video toturial of how to edit in-fight sounds out there please send me link. Just don't tell me that I need Wac file and then simply leave. I have heard enough of it. I need more explanation which I can use. So Please give me step by step instructions of what I need to do. just 1 example. And thanks for attention.