TRICK TO USE THE DOUBLE GRENADE
Just use an ink grenade and place a smoke grenade next to it. The effect will be that of a stun grenade that will detect enemy presence and explode when an enemy passes by it.
TRICK TO USE THE SHOTGUN
The beauty of this trick is that it allows you to draw a shotgun even if you don't have it equipped. It is very useful especially in multiplayer games, so follow these steps to unlock it:
- Grab a shield and drop it immediately.
- Equip yourself with the pistol.
- Press quickly
– 
– 
(button on the D-pad that you have assigned for the secondary weapon)
This way you will unholster the shotgun, ideal for the hordes of enemies that populate the multiplayer maps.
DIZZY HAT TRICK
To unlock it, you will have to shoot some strange objects that move underneath the trucks in a certain level (and it is imperative that you play it in Madness mode). It requires lynx reflexes, because if you miss the shot, the opportunity to unlock them will pass and you will have to restart the checkpoint.
We leave you a video so you can see in which mission and in which section of it you can get it:
The effect of this hat, however, is not positive for you, since other characters' shields will be invisible, making enemies more difficult to kill. Also, if you change weapons with the D-pad you will lose your shield unless you pick up a weapon from the ground or use the pistol.
TAKE ADVANTAGE OF HIDEOUTS IN MULTIPLAYER
This, more than a trick, is a glitch that you can take advantage of and that may no longer be available due to a patch that has fixed the problem.
As you know, there are parts of the stage where you cannot pass, such as the inside of a fenced building. Well, if you remain barricaded in one of the walls of said building and throw a smoke grenade next to your feet (lower the camera as far as possible to achieve this), you will be thrown backwards, pushing the glitch into a building where, supposedly, you can't be there.
It is a glitch only applicable with smoke grenades and very interesting for games where, once your boss has died, your teammates desperately need someone to regenerate with.
GET TO CROSS THE LASER BARRIERS
It is done in the same way as the previous trick: taking advantage of the smoke grenade glitch. Get right in front of a laser, throw a smoke grenade next to your feet and you will be thrown backwards through it.
TRICK TO USE HUMAN SHIELDS
When you kill an enemy, approach them and follow these steps:
- Get next to him and switch your weapon to the pistol.
- Rotate the camera completely, so that you see exactly what is to the left or right of the corpse.
- Press + quickly turn the camera to any side + press
- Now, you can use the body of the downed enemy as a shield. Of course, don't change weapons or the corpse will fall.
DIFFERENT EXECUTIONS
Equip yourself with a sniper rifle, explosive bow or magnum and hit the enemy until they die.
When it falls, choose a grenade + 
and you will execute it differently.
EXECUTE WITH THE BOW OR THE SNIPER RIFLE
Approach an enemy and press + switch to shotgun. The combination will unlock execution with these weapons.