Plutonium

Plutonium IW5 added the Intervention from MW2, and in Plutonium, I think I've used the Kamchatka-12 from Modern Warfare 1 Remastered a while back, so is there a mod or mods to download the weapons from MW1, MW2 and the exclusive weapons of MW Remastered?

Could it be turned into something other than google drive for the link to be posted here?

Also, the MW2 map Quarry was in the same situation for me as these other maps, but I found it in the map cycle for AIZombies. Maybe the map Rundown is also there, but I didn't stumble upon it there.

I have all the maps from MW1 except Broadcast and Chinatown, and I have all the maps from MW2 except Rundown.
I had the map Broadcast in the past, but I accidentally deleted it and I can't find it again, so any help would be greatly appreciated.

The mod is works perfectly when I play publicly, but when I try to play this privately and do the 'loadmod aizombies3' and do it on any map it's meant to work on, this ensues.

Scr_EmitFunction: function "randomdrops" in file "maps/mp/gametypes/grnd.gsc" referenced unknown function doc130flyby from script maps/mp/killstreaks/_airdrop.gsc

Some help for the error would be brilliant.

Thanks for the reply, because it prompted me to check again.
I know why I couldn't find it now. It's because since I only play the infected mode with Bot Warfare mod added, the only classes I ever interacted with was the Create Default Classes in the Options for Game Setup. The added guns never show up there (at least for me). They only show up at the starting menu within the Create Class.
Well I guess that's my proper issue then, why are the weapons not there for the Create Default Classes in the Options for Game Setup?

Plutonium has pages about adding in custom things, like Custom Maps: Rust, Highrise, Nuketown, Skidrow, Favela
and Custom Weapons: AK-74u, Intervention
It seems like both the maps and the weapons are meant to be added automatically with IW5, as both of their pages on plutonium are styled in the same sort of way, but I've only gotten the maps, not the weapons.
With my utterly bare-bones understanding of coding/modding games, I assume that adding in the guns, would be easier than adding the maps, with the easiest thing to add being the AK-74u, since it's already in the MW3 campaign and spec-ops, and the hardest thing to add being Nuketown, since it's not even from a MW game, but a BO game.
Anyway, I would be satisfied with help to at least use the AK-74u.