No, installing unauthorized L4D2 mods will result in a Steam ban.
No, installing unauthorized L4D2 mods will result in a Steam ban.
I installed hundreds of mods on L4D2 and everything functions properly. Unless you rely on cheats, you won’t face a ban—Worshop mods tend to be secure.
It's unlikely cheating mods would result in a full Steam ban, but a VAC ban or server exclusion is possible.
Typically, no. Regarding a VAC ban, you can only enforce it by changing the VPKs the game employs by default.