You don't understand his question. He asking if you compete with other players in Multiplayer modes.
Yes, you do. If you have ever played Killzone 3's operation mode, it will perform a little like that. There are cutscene for each mission, and campaign missions are basically Multiplayer missions, except against other players. They are very in-depth and you each map can be played twice, one version of the mission for Security, one For resistance. There are 8 maps, and 2 what-if maps.
You can also play the campaign with Co-Op and bots.
There are challenge modes, which you try to perform the selected challenge at the best skill level and compete for online leaderboards.
There are NO leaderboards in Brink, at all, so if you some super-devoted COD really devoted fan who loves to brag about his leaderboard rank, you will be disappointed. N K/D tracking, No W/L tracking, nothing. You play for fun.
Hope that answers any questions you might have. :spotted owl:
Ohhh. Sorry for that, then. I had assumed OP understood the whole mingleplayer concept, since he/she made no mention of it. My apologies for confusing you :c