Played some of the latest
Dirty Bomb beta, which is from Splash Damage (Wolf:ET, ET:QW, Brink, Batman Arkham Origins multiplayer) and maybe I don't know how to do things but it needs Brink's movement system with Titanfall style wall-running and crap. It "feels" like Brink (like Batman did) in terms of basic movement/camera sway/etc. so I kept trying to hurdle stuff and you can't seem to do it like in Brink.
It's somewhat basic at the moment, but they've refined some of the Brink issues, it's basically, movement aside, a Brink sequel with a bunch of the stuff FPS multiplayer has added since that came out. It's heavy on objectives, which I've always liked more than TDM and it's why I liked Brink. There's all your various classes, there's crap to call in, kits to deploy, etc. The way you get different loadouts is you unlock cards that have them for the classes. This is obviously where the payment model will come into play. You earn ingame currency from challenges like in Titanfall, etc. They don't seem to have any of that stuff in place yet except for buying two of the classes.
Would like to get my hands on the one medic card because I was already spamming healing stations all over the map and getting endless XP and this one expands their range 50% and cuts the cooldown time to place another 50%. They appear to stay even as you add more unless they get destroyed.

Runs smooth and the matchmaking is on the ball, which were some issues in Brink and B:AO.
For free (it'll be f2p at release) though I'll probably play it from time to time if it doesn't die off immediately.
EDIT: Also, like Brink, if the defenders are any good, attacking is basically impossible.