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