Stranglehold

Extra ammunition:
If you run out ammunition but have enough Tequila Bomb for
the "Precision Aim", aim at someone and shoot. This will
create 20 to 30 more rounds for the handgun. Always try to
have a enough Tequila Bomb for "Precision Aim" in the event
you run out of ammo.

Secret theater
On the first level, after the second checkpoint when you are
walking in the door take a right. You will see a damaged door.
Shoot it and walk through the corridors. You will end up at a
secret theater that shows two previews of games, The Wheelman
and Blacksite Area 51. There is also a golden pistol, a paper
crane, and a shotgun in the theater.

 