No, left 4 dead will only work for left 4 dead mods.
you have to stick it in
All mods that dont add items/blocks to the game, or spawn items (cheat in anyway) will work
You don't computer game mods will not work on the PS3 and the PS3 USB port does not go to the games section of the PS3 hdd to allow uploading of games, add ons, or mods
Because there are no game legal mods and it is just a form of cheating
There are hundreds of mods made by hundreds of people. They go from a single simple mod to dozens of mods that will put your computer to hard work to run them. Just do a search on the internet for minecraft mods and pick from the ones you like. Be aware tho that not all mods will work with other mods made form other people. You HAVE to read the directions of the mod to keep from crashing the game. Also be aware that every time Mojang updates the game the modders have to redo each mod to be compatible. It could be hours to weeks for some mods to work again.
perhaps one of the mods is corrupted by the mod maker take it out on them ask them
Some mods such as banners will work but others like full skin mods wont work because the folder you are meant to put them in are missing. Steam does something strange with the files to use them for all DOW 1 games, I think.
The Vanilla version of Minecraft refers to the game with no mods or texture packs installed.
You can get your mods working on MW3 by uninstalling and reinstalling the game.
Ok if you are talking about mods like gun mods to look different and or sounds you can download some of them from fpsbanana.com they will also provide you with instructions on where to insert the files to make them work with your game.
Unless you work for Valve as a programmer working specifically on Left 4 dead updates, it's unlikely that you'll be able to alter the gameplay. All you can do is change how you play the game.
The Server has to install the mods Not You.