I fixed it, I was using two script mods, it's all sorted now

Most likely it's conflicting with mods related to the CSS weapons,this mod only changes the CSS weapons scrips(the stats of the guns),so anything that also changes that will conflict so if you use CSS weapons mods to change the models those may also have the vanilla script included which may be the cause.(yes some mods do include the vanilla copied and pasted script in there for some reason even tho they change the models and sounds not the stats)
I suggest fully disable everything CSS weapons related other than this,then one by one enable them to find the cause.

I don't think it's working for me, and I'm not sure which mod I have is conflicting with it

great mod, now the css weapons are actually useful

Thats understandable

I could but unfortunetly work gets the best of me and my schedule is full

Then again you could make another version that would work better with the last stand update as they are uncommon. But hey, just my preference.

Yeah well this mod was based on the other mod that made those guns spawn(before the last stand update) and that made them a bit more common,plus again if you want you can increase their mag size or damage by yourself,its rlly rlly easy since you only edit a TXT file and change the number from 30 to 35 or whatever you feel it needs on the line "magazine size"

same with the mp5. mac 10 and uzi is more common

then again the sg552 is a bit rare in campaigns with the ak being a bit more common

Ofcorse you can feel free to take the mod from the steam workshop folder decompile it and edit the TXT files to fit your tastes,feel free to experiment just remember that credits go where credits due ;)
P.S. i too love this mod and i made it and i share it cuz the CSS guns need attention too,the SG and MP5 are a nice change of pace and the Scout could be the perfect tool to take down most of the SI if played well,as for the AWP if you can find 3 other friends and you all have this mod one of you could be the sniper of the group since the AWP is mostly a one shot to everything except the tank while the others protect him from commons =)),this mod does open some interesting options to play the game imo

The reason it has a little mag is due to the fact that ppl need to decide between guns,you see the SG552 has more damage and penetration than the other ARs but at the expense of the mag size plus another benefit is the scope zoom too,it has a 30 bullets mag for balance reasons and same goes for the mp5,i wanted those two to feel different and unique compared to the vanilla rifles and SMGs from the game to the point of making the player think before picking them up if they need to choose between similar options,as for the AWP and Scout they are as they should've been imo,the AWP is the "huge power has a huge price" and the Scout is the same but with a more forgiving price,i tried several things with this mod and as you can see in the patch notes i updated it a bit to balance it so i tried in the past the thing you suggested and the SG felt a bit to OP to the point in which i never picked up the other ARs so i lowered the mag capacity to this extent

also the sg552 is really good now but the main problem i have with it is the mag size. mabye 35 bullets would be better considering the fast firerate and floods of infected. it will force people to make a decision of the ak or sg552.

works now and one of the best mods i have

i am an idiot and didnt restart the game

Make sure nothing is conflicting, keep in mind most "skin" mods also do have the weapon script txt file in them even if its the vanilla script and that usually creates conflicts, try to mod without any other mod on just to see if it works and then turn all the nods one by one or in groups of 3 at most to make it easier to find the culprit

mp5 is broken still has 50 bullets and possible the same damage

Just sub to it,when you enter the game it should just work,warning tho it will not work alongside mods that already have scripts in them,for exemple a replacer for the AWP could potentially have a script text file inside and even if that is the default script it will still overwrite this one that my mod adds,so try not using any replacers for the CSS weapons and see if this script works also mods that change the HUD icon of the CSS weapons will also conflict with this mod cuz the HUD is also in the script text file,if it does work than some mods do conlfict with this one.
This is a simple script mod and should only conflict and not work IF somethingelse changes the CSS weapons scripts in any way

how do i get this to work?

Idk honestly,to all that i shared this mod with it worked perfectly,but again it may be some game related thing,i've had trouble with other mods that from the comments it should've worked perfectly,and i use mods that to me and most in comments work perfectly but there are ppl who still can't get them to work,well so long as you made it work by making your own script and copy pasting the stats of this one its fine by me XD,i make these for fun,to have fun with them and for pppl to have fun with them,anyway so long as it works its fine but again i suggest disabling the Steam Cloud sync and making a clear install of the game,it may solve future issues,maybe not now but keep it in mind next time you face trouble with the game

So I went into a few custom weapons' for the CSS guns pulled the script file and modified to match the stats on you scripts. I replaced the files in your mod and tried again. (I know how to work with script files to some extent but I am not proficient.) This time it worked perfectly. The stats are all the same as yours but for some reason, a different mod's files worked perfectly. I am not entirely sure what the difference is, but there's something there that's not functioning properly. Anyway, thanks for the insight.

To deactivate the cloud sync obviously go into the game then settings and i think if you search a little you will find it, trust me that cloud sync is useless and only prevents you from fixing a broken game cuz ot restores the broken parts aswel, the cloud sync in l4d2 only saves settings such as binds and thing that take like 2 minutes to remake after a clean install

Well honestly the mod works perfectly as intended and i am not sayibg this cuz i made it, i just use it with many of my friends on online games and still works no prpblem, if you say you have trouble with more script mods and not only just this one then your game might be messed up, i had this problem with sound and the only way i sopved it was a complete clean install, sometimes due to too many mods the game breaks, try doing a complete clean reinstall of the game, also a little tip for you, deactivate the steam cloud sync, its a good thing to save your config but that itself makes you unable to fix a game since it saves a broken config and it restores that broken config even after a clean install, that is what kept breaking my sound in game, i deactivated it, then clean installed the game and voila works as a charm, i hope this helps you

I've gone as far as removing every mod in my game except for this script and it still doesn't function. Trust me, it was my first thought that there was a conflicting mod (even though the game doesn't say that anything is directly conflicting.) I've had a lot of problems with script mods not functioning lately.

just subscribe and the game does everything for you,just keep in mind it conflicts with weapon mods that have a custom script in them,for exemple it conflicts with an MP5 mod that has a custom HUD icon cuz the HUD icons are handled by the weapon's script,so if a mod for one of these 4 CSS guns has a custom script that can be the cause,try to disable all the mod for the CSS weapons (except the CSS weapons unlocker) and see if it works,also try to find out if this is conflicting with other mods you have,maybe you have other script mods for these guns

It simply doesn't work. Is there a specific way it needs to be installed?