Since Gmod's been updated to be able to mount any source game, I'll do alot more campaign posters. I'll probably add it in.
If you get someone to make a skin for Bill as an Army Guy in L4D2, I'll make you a campaign, seeing as how you can't use custom models directly in campaigns in L4D. I already have Zoey, Louis, and Francis' models. This is just something I thought up because I want to get mapping again.