Back in the day, there would be a bunch of signs showing the map that you would be playing if you clicked on it. You could also memorize the team size for that certain map, so when you and your buddy wanted to play without some random dude camping the diamond generator, you could just pick a map where the max team is 2. Now you have to select "Team eggwars" and just hope you get on a random map with 2 as the max. If you get it wrong you have to wait for a new lobby and try again. It's very time consuming and really annoying. Making players able to choose the map that they want to play on is what i recommend, but if there isn't enough players for that, just go for making players able to choose team size.