Jack Daniel yes it work in all maps and like the title says it's power up. (at some point you will find perk bottle powerup)

dontknowletspl
@dontknowletspl
Posts
-
[Release] [Zombies] Black Ops 2 Custom Perk Power up -
Lava M1911 -
[RELEASE][ZM] [BETA] New bo2 hud systemAdrX003 Doing it in gsc has few ways i guess. The way i did it was by removing the original powerups from the include array etc and added them back as custom powerups so i could set the new location for shader.
Example:
arrayremoveindex(level.zombie_include_powerups, "double_points"); arrayremoveindex(level.zombie_powerups, "double_points"); arrayremovevalue(level.zombie_powerup_array, "double_points");
Easier way would be doing it in lua. I think there is decompiled lua dump in plutonium discord pins. You can find powerup file in there and adjust the Y little higher.
I guess some of my post show how to add custom powerups if you decide to go that way.