Certain maps allow the enemy team to completely surround the spawn area of the map. Javelin-4 is the best(worst) example. It's so infuriating to be constantly spawned in with nowhere to go because as soon as you leave your spawn you're being shot at by 2 people.
Next thing you know your team is quitting the match, and rightfully so.
Good luck enjoying the 2.4 seconds you get to be alive after spawning in before being domed in the head by bungies neglect
And the icing on the cake is this problems as old as the game itself.