1. Collectibles
1.1. Souvenir Locations (The Tourist)
1.2. All Speeding Tickets (Speeding Ticket)
1.3. All Car Keys (No Trophy / Achievement!)
1.4. All Dog Tags (No Trophy / Achievement!)
1.5. All E-Mails (No Trophy / Achievement!)

2. Story-Related
2.1. Food for thought (Mission: Second Chance)
2.2. Hole in One (Mission: Dark Heart)
2.3. Band of Brothers (Mission: Semper Fi or Die)
2.4. Literary Agent (Mission: Train to Catch)
2.5. Stealth Assassin (Mission: Eye of the Storm)

3. Miscellaneous
3.1. Blast Radius (Kill at least 3 enemies with a single grenade)
3.2. Two Heads Are Better Than One (Kill two enemies with a single bullet)
3.3. Death Slide (Kill 5 enemies while sliding)

The Tourist
There is a total of 18 New York Souvenirs. One per level.
I recommend to play through the game at least one time to find the Collectibles fast and easy later on.

Speeding Ticket
There is a total of 10 Speed Tickets which means you have to get each single one. This is the only hidden trophy in Crysis 2!
A Speed Ticket can be acquired by sprinting past a speed camera. Actually, you should get the most by accident on your first playthrough. The mission name is highlighted in the top left corner. You can start the mission you need in the mission selection menu. As soon as you got the speed ticket you can quiet and start an other mission. There is no need to play until the next checkpoint and you don’t need to finish the mission.

Car Keys
This is not needed for a Trophy / Achievement! So be warned.
There are 11 Car Keys in total. The Mission Name is highlighted in the top left corner.

Dog Tags
This is not needed for a Trophy / Achievement! So be warned.
There are 17 Dog Tags in total. The Mission Name is highlighted in the top left corner.

E-Mails
This is not needed for a Trophy / Achievement! So be warned.
There are 10 E-Mails in total. The Mission Name is highlighted in the top left corner.

Food for thought
Kill a CELL operator with a giant donut in Lower Manhattan.
This is story related and can only be done in the ‘Second Chance’ Mission, right after getting the advanced armor ability.
Use stealth and mark all the enemies. This will give you the opportunity to see their locations. Wait on the rooftop while cloaked. Do not shoot or jump around. Just wait for a couple seconds. A scripted event will force the guard to walk right below the donut. You can shoot it or go near it and press the shown button. In case you fail, kill yourself with a grenade and restart from last checkpoint.

Hole in One
Throw an alien down the sinkhole in Dark Heart.
This is story-related. After progressing in the ‘Dark Heart’ mission you will come to the shown location. Use the stealth ability and sneak past the aliens. Use the Square Button (PS3) to grab an enemy near you. Press L1 (hold it down to make the throw stronger) and aim for the dark whole on the ground.

Band of Brothers
Keep all marines alive during the rescue in Semper Fi or Die.
This is story-related and can only be done during the ‘Semper Fi or Die’ Mission.
It’s highly recommended to do this on the lowest difficulty (Recruit)!
It’s important to know who the marines are. You can see them as white arrows on your map. After sliding down the little hike you will encounter a couple soldiers who are fighting with you. It doesn’t matter if they die or stay alive.
Before getting into the fight you should equip a nice rifle and get some ammo. Grab and throw aliens when they come close to you. It will cost you all the Suit energy but it’s always a fast one hit kill and saves ammo. Don’t about the MG. Another one plus a sniper rifle are situated on the upper level near a damaged shop.

Literary Agent
Scan all of Richard Morgan’s books in the NY public library.
This is story related and can only be done during ‘Train to Catch’, after entering the huge burning building.
The rest is pretty simple. Search for the shown book and scan it.

Stealth Assassin
Re-route the power in Eye of the Storm without being detected.
This is story-related and can only be done during the ‘Eye of the Storm’ Mission.
In order to make things fast and easy you should already have the Stealth Enhance Upgrade of your Nano Suit (will cost 16000 points). This will allow you to stay cloaked a lot longer. All you need to do then is to run through the map until you reach the power station. Take a break from time to time when no enemy is around to restore suit power.

Blast Radius
Single Player: Kill at least 3 enemies with a single grenade
This can be done very early in the game. There is a good spot during the ‘Second Chance’ Mission. When reaching the shown location you will find a box with grenades. Grab them and throw one right between the 3 enemies, standing in the middle of the area around a big hole. If you fail kill yourself with a grenade and retry.

Two Heads Are Better Than One
Single Player: Kill two enemies with a single bullet
This can be done in the very beginning. A mission called ‘Second Chance’. You can not miss the shown location! After fighting your way through a base with lots of enemies you will get into a decontamination zone. Right where the video starts is a checkpoint. Go out and use the stealth ability. Wait until the two enemies stand in a row. In case one of the guards is walking away, you can make some noise to draw their attention on you. If you fail let them kill you and you will restart right in front of them. This can be done with any weapon!

Death Slide
Single Player: Kill 5 enemies while sliding.
Pretty simple. This can be done at any time. Shoot your weapon while sliding and that’s it.
You don’t have to kill 5 enemies in a row with sliding attacks. No need to do it in one life or in one level. This can be tried through the whole game.