A bit of a headache
Take down an enemy with a Cortex Bomb
5
Boom!
Detonate a HE Charge
10
Brinksmanship
Complete an Operative Primary Objective within 5 seconds of breaking disguise
10
Cut 'em off at the pass
Close an enemy team's shortcut
10
Great shot kid! One in a million
Take down an enemy by shooting a grenade
10
I live… again!
Revive yourself
5
I think I know a shortcut
Open a shortcut for your team
10
It's a trap!
Take down an enemy with a Satchel Charge
10
King of the world!
Complete all 3 Star Challenges
100
No I insist, you take it
Use the last of your Supplies to refill a teammate's ammo rather than your own
5
Not over till the fat lady sings
Take down an enemy with gunfire while knocked down
10
Not so sneaky now, are you?
Reveal an enemy in disguise
10
Oh I'm sorry, was that yours?
Capture an enemy Command Post
10
Pump up the volume!
Upgrade your team's Command Post
10
Smart decisions win battles
Attempt to Revive an objective-class teammate over a non-objective teammate near a Primary Objective
10
T'is better to give than receive
As a Medic, using the Transfer Supplies ability, give the last of your Supplies away
10
That mine you found? Disarmed!
Spot a mine which is later defused by another Engineer
10
That's how you win a match
While on defense, take down an attacker who's completing a Primary Objective
10
The start of something big
Win any mission, whether campaign or What-If
20
The story has just begun
Win both story campaigns (not including What-If missions)
100
They never knew what hit them
While on offense, win the match in less than 30% of the time limit
20
Time to start a new character
Reach Rank 5
100
To serve and protect
Win every Security campaign mission, including What-If missions
50
Tough as nails
Win all storyline campaign missions (exc. What-If missions) in either Online Versus, or in Hard mode
80
Use the wheel, earn more XP
Complete an objective after first selecting it on the Objective Wheel
10
Very well done indeed!
Complete your first 3 Star Challenge
20
Viva la revolution!
Win every Resistance campaign mission, including What-If missions
50
Was it the red or the blue wire?
Disarm an HE charge
10
Well done!
Complete your first 1 Star Challenge
10
Well that was educational
Collect all Audio Logs
50
Who's bad?
Complete all 1 Star Challenges
25
You can place another mine now
Take down an enemy with a mine
10
You shall not pass!
While on defense, prevent the attackers from completing their first objective
20
You're going places, kid!
Reach Rank 2
20
You've escaped the Ark
Win all main missions of the Resistance campaign (not including What-If missions)
75
You've saved the Ark
Win all main missions of the Security campaign (not including What-If missions)
75