Yea you need to be careful with that. Use _ instead of a space. Also if you're having sizing problems...(too big of buildings, or too small) and whatnot, try adding a info_player_start. It'll give you the size of a player, if that can fit in a doorway a player can. Also you need to add roughly 15 info_player_start(s) for each team. If you're needing help with the Hammer Editor, while you have the program up and running, click the help button, then in the drop down click 'Help Topics'. It'll pull up a website. In the search bar on the left of the website, type in Team Fortress 2. That should help with just about everything. Navigate your way around in there.