“Welcome to the Jungle” is the second mission in Crysis 3 and it contains 3 datapads.
Crysis 3 Datapad location no. 1
After collecting the weapon “Bolth Sniper”, turn right and jump on the rocks towards a dead end. You will find a datapad on the box in front of the broken fence.
Crysis 3 Datapad location no. 2
Once you reach a large blue warehouse, turn left and go under the ruined highway bridge. As soon as you pass the bridge you should see a pyramid shaped container. A Datapad is located next to the container. Hack the container and you will get Nanosuit upgrade.
Crysis 3 Datapad location no. 3
Once you reach the train station and pass by a big tree in the middle, use small tunnels to reach a Datapad, which is located under the rails.