How to add guns to deathrun server

I’m wondering on how to mount the guns to all the maps in the deathrun gamemode because when I get to the end they are not there, thank you if you help me

just today 2 thread alone that i saw, with the same issue.
Just get an CS:S SWEP Pack, rename the weapons to the cs:s sheme (weapon_ak47 and so on), and you are good to go.

but where will i place the new files into gamemodes\Deathrun