i'm trying to add thunder claps to my map without using the kam.lvl sound file i added these lines to my ssacw.req and ssacw.sfx

.req
"global_world"

// Ambient Environment ------------------------------------------------------------------------------------
effects\emt_kamRainGutter_01.wav -resample ps2 11025 xbox 22050 pc 22050
effects\emt_kamRainGutter_02.wav -resample ps2 11025 xbox 22050 pc 22050
#ifplatform xbox pc
..\..\global\effects\emt_thunder_clap_01.wav -resample xbox 16000 pc 22050
..\..\global\effects\emt_thunder_clap_02.wav -resample xbox 16000 pc 22050
..\..\global\effects\emt_thunder_clap_03.wav -resample xbox 16000 pc 22050
..\..\global\effects\emt_thunder_roll_01.wav -resample xbox 11025 pc 22050
..\..\global\effects\emt_thunder_roll_02.wav -resample xbox 11025 pc 22050
..\..\global\effects\emt_thunder_roll_03.wav -resample xbox 11025 pc 22050
#endifplatform xbox pc

would i have to add a sound region in ze and if so how would i set it up also do i need to call for this in the .lua other than telling the game to read my custom sound.lvl?

You are suppose to add certain lines to your world's .fx file. Check out the kam1.fx file for reference.