Here is the full list of all 43 Brink achievements.
The base game contains 36 achievements, and there is 1 DLC pack containing 7 achievements.
Take down an enemy with a Satchel Charge
While on offense, win the match in less than 30% of the time limit.
Collect all Audio Logs
Reach Rank 5
Complete an Operative Primary Objective within 5 seconds of breaking disguise
Disarm an HE charge
Complete all 3 Star Challenges
Complete all 1 Star Challenges
Complete your first 3 Star Challenge
Take down an enemy with a Cortex Bomb
Complete your first 1 Star Challenge
Win every Security campaign mission, including What-If missions
Attempt to Revive an objective-class teammate over a non-objective teammate near a Primary Objective
As a Medic, using the Transfer Supplies ability, give the last of your Supplies away
Upgrade your team's command post
Win both story campaigns (not including What-If missions)
Win all storyline campaign missions (not including What-If missions) playing either Online Versus, or in Hard mode
Win all main missions of the Security campaign (not including What-If missions)
Open a shortcut for your team
Spot a mine which is later defused by another Engineer
Reveal an enemy in disguise
While on defense, take down an attacker who's completing a Primary Objective
Win every Resistance campaign mission, including What-If missions
While on defense, prevent the attackers from completing their first objective
Close an enemy team's shortcut
Win all main missions of the Resistance campaign (not including What-If missions)
Take down an enemy with a mine
Take down an enemy by shooting a grenade
Reach Rank 2
Detonate a HE Charge
Win any mission, whether campaign or What-If
Use the last of your Supplies to refill a teammate's ammo rather than your own
Capture an enemy's Command Post
Revive yourself
Take down an enemy with gunfire while knocked down
Complete an objective after first selecting it on the Objective Wheel
Reach Level 24
Kill an enemy with a Napalm Grenade
Have a Field Regen Unit buff more than 3 players simultaneously
Kill an enemy with a UAV
Kill an enemy with a Pyro Mine
Win Founders' Tower as both factions in Campaign Mode
Win Labs as both factions in Campaign Mode