Sniper: Ghost Warrior 2

Secrets in act 1 are wooden statuettes of a hula girl. There are 4 in each mission, which totals 12 secrets altogether in act 1. For a text description of where each hula girl is, please see below. I have also provided a video which shows the locations of all secrets in act 1.

To see how many secrets you've collected in act 1, choose extras from the main menu, choose secrets, then choose act 1. You'll be given a list of missions in that act, and when you click on a mission it will tell you how many you have. If a mission is greyed out, then you have not collected any collectibles from that mission yet.

Communication Breakdown:

Secret #1 - Very beginning of the mission, after killing the enemy in the shed with your thermal goggles, go into the shed and pick up the secret on the other side of the generator.

Secret #2 - After you've crawled under the pier with Diaz, you will climb out of a hole and kill an enemy in front of you. After killing him, turn to your right and to the left of the backside of a set of stairs will be a secret.

Secret #3 - After you've detonated the C4 and have waited for the enemies to run by, instead of going straight with Diaz, turn to the right and go up both sets of stairs. The secret will be in a corner on the 2nd floor.

Secret #4 - Once you've reached the church where you need to overwatch, instead of going straight, turn to your right as soon as you get in the church. Go up the stairs, and collect the secret off the railing at the top.

From Out Of Nowhere

Secret #1 - Right before you go into overwatch, turn to your right where there will be some crates. The secret will be on top of one of the crates.

Secret #2 - After exiting overwatch, and getting out of the cave, you'll end up walking on top of a house where you need to kill an enemy with his back to you and a sniper across the next building. After that, keep proceeding toward your objective until you enter a house with a set of double stairs, go behind them and crouch to pick up the secret.

Secret #3 - After clearing out a group of enemies from a sniper's perch, you'll see a house with a pool to the right of the path you need to take for your objective. Enter the house, and the secret will be on one of the tables to the right.

Secret #4 - Towards the very end of this level, right before you have to go on overwatch again, there will be a set of stairs (on a tower) to the right so go to the left instead. Inside of the small room will be the secret on top of a crate.

Leave No Man Behind

Secret #1 - After clearing out the first group of enemies that are in a house/pier on a beach, you want to go to that house/pier. To the left of a rock in front of the pier is where you'll find the secret.

Secret #2 - After you jump into the ocean, and clear out a house full of enemies, proceed inside and up to the second floor. The secret will be on some boxes.

Secret #3 - From the last secret, keep following your objective until you see the rail car. Go into the rail car control station and pick up the secret off the console.

Secret #4 - From the last secret, get on the rail car and let it take you to the top. Once at the top, keep going straight and down the stairs until you see a house. Enter the house and the secret will be on a table.