I realize this after putting some hours into brink. Some maps are fine but other maps find it very easy to trap the enemy team. Container city is an example, can very easily spawn trap the attacking team to where they cant reach either of the steps at first spawn.. Also a few other maps where half way through the match there will be a point to where you only have one way to enter, again very easy for the defending team to trap the attackers. But not complaining for if you have a team that works together, with some hard work can get out of the trap. On the other hand if your team doesn't work together then just prepare to rage a lot.

I noticed this when playing against the ai team, on container city i kicked ass because they couldn't really get out from their spawn area and i had them dead, it was really fun on my end of the game!

My favorite spot was defending as security when the Resistance is escorting their pilot out (do not remember map name) in a freeplay match.

But essentially they had broken through all of our defenses, and almost had the guy out before he was downed right before the boat.

We all holed up as medics and engineers as there was only one way to exit the mission. lol epic come back holding that position for 5 minutes!