And they are also added in the script? ( _zombiemode_perks in machine_watcher(), and perks_a_cola_jingle() etc )

Im sorry what? Im new to modding in general, what text needs to be in which script?
Im using the Black Ops perks from Script Placer Z for reference, im not sure how they are set up, but there is _zombiemode_perks and _zombiemode_perks_black_ops iirc

Dont think they are in those scripts allready, you'd need to add them. Easiest to just do that in _zombiemode_perks, but it's spread out over a few functions. You should be able to just add the new one's by copying over existing line's and changing name's etc.

In the init() function there's these for the stock jingle's:

	level.speed_jingle = 0;
	level.revive_jingle = 0;
	level.doubletap_jingle = 0;
	level.jugger_jingle = 0;	
	level.packa_jingle = 0;

Then there's line's in:

machine_watcher()
machine_watcher_factory(vending_name)
perks_a_cola_jingle()

That's all i think. Depending on how comfortable you feel in scripting, this shouldn't be too hard. Just copy existing parts carefully, and edit them 

I had the same issue, thats what i was describing earlier. Never did resolve it, i just recoded the jingle system

I literally had it set up identical to Treyarchs, but it didnt seem to like it

no error, just didnt play, but i added a trigger elsewhere to play the sound and it worked, so the sound itself was not the issue

also, you need to make allowance for solo revives jingle

So how did you do that? Make a trigger play the jingle? Would it be possible to just have a script_struct or trigger or something play the jingle occasionaly and when the perk is bought?

no i meant i put the trigger in just to test the jingle sound was loaded and capable of playing. It just wouldnt work on the perk machines properly

just adding a trigger to play a sound is easy

play_sound_trig()
{
    player = undefined;
    self waittill( "trigger", player );
    
    player playSound( "YOUR_SOUND_NAME" ); // so in your case like ( "mx_deadshot_jingle" );
}

under zombiemode::main() in yourmapname.gsc add :

sound_trig = getEnt( "TRIGGERNAME", "targetname" );
sound_trig tread play_sound_trig(); 

change "TRIGGERNAME" to whatever "targetname" you put on the trigger in Radiant

So I am guessing this cant be used to get the jingles to play properly?

If they arent gonna work they arent gonna work and ill just manage without them, but if there is a way they will work i will try

give it a shot first, if you cant do it, ill adjust my perk script to work with the stock scripts again and give you that. Should just be drag/drop

(and ill give you the sound alias, but give it a try first just incase)

Im on my phone now and wont be on my pc till tomorrow, so ill try it and update then, thanks anyway

tomorrow is fine, just PM me if you need it