When you join a MP game, especially a public game in which no one has a mic, you have to feel around blindly for the local Workshop or Infirmary-- assuming there is one. Instead, it would make things much easier to be able to see what the host has setup. Not only would it point you in the right direction for using facilities, it would help you form an opinion on what to do next. If you're playing with a new player, you can give advice. If you're playing with a veteran, you can debate on your next move, or learn a thing or two. Maybe you can just gawk at how differently people setup their bases? No matter how you slice it, it would help things out immensely.