I use harry's perks , so that means you can edit start weapon from within his perk script. The only problem, is that i think that the weapon switch function from loadout.gsc is messing with the start weapon because I get the weapon I set in the perk script, then it switches to the WaW colt, and then back to the weapon I set. So the player starts with 2 weapons instead of one. Does anyone know how to fix this, if anyone does, will they please tell me.

Ok.Lets see if this help.Go to mapname/maps/_zombiemode_perks:In this GSC file,find set_zombie_var( "start_pistol",                "zombie_colt" ); and change the "zombie_colt" to your starting pistol.The problem is in loadout,in this file,find //Zombiemode loadout,in this function change the set_switch_weapon to your new starting pistol or just delete the zombie_colt from it(don't know if this works)

i will try this

(edit)
tried doing did not help, but in the zombiemode loadout, if i change the add_weapon and set_weapon_switch, it works, but now i have a bug where when i buy wall weapon it does not give me the wall weapon, anyone know how to fix.

i will try this

(edit)
tried doing did not help, but in the zombiemode loadout, if i change the add_weapon and set_weapon_switch, it works, but now i have a bug where when i buy wall weapon it does not give me the wall weapon, anyone know how to fix.

"if i change the add_weapon and set_weapon_switch"
this is due to you changing the functions you have...
you nee to reinstall harrys perks as I and many other have never received this issue as we can just change the pistol in perks and done so do as I just said and let me know