Hello everyone, I'm new to the forums but not new to Source mapping. I've made several maps and campaigns for games like CS 1.6 all the way to L4D2. However, I've never made TF2 maps. Believe it or not, but I only started playing and enjoying TF2 about 2 years ago. Anyways, ever since I helped one of your members test his map (his name's Alias and makes extremely hard but fun mvm waves) I've been wanting to create an mvm map on my own. I'd like to ask: what are some general guidelines when making an MvM map? Are there any things that I should NOT be doing, or is everything possible as long as there's a spawn area and a bomb site?