As you progress through the game you will start unlocking a whole stack of new content including weapons, purchasable vehicles and unique abilities.

Unlockable Outfits

Directions	Reward	Outfit Link
Complete mission "Over The Top"	Army Fatigues	Click Here
Complete mission "Conduct Unbecoming"	Casuals	Click Here
Complete mission "Havana Good Time"	Cuban Style	Click Here
Build a High Roller protection racket business	Hired Muscle	Click Here
Build a High Roller robbery business	Hood	Click Here
Build a High Roller prostitution business	Leisure	Click Here
Complete mission "Brawn Of The Dead"	Pastel Suit	Click Here
Build a High Roller loan shark business	Repo-Man	Click Here
Earn MAX respect level in business types	Smart Suit	Click Here
Build a High Roller smuggling business	Smuggler	Click Here
Build a High Roller drug business	Tracksuit	Click Here
Complete mission "D.I.V.O.R.C.E"	Trailer Trash	Click Here
Complete all the storyline missions	Winner	Click Here
Complete all 8 Watersports races	Wet Suit	Click Here

Unlockable Weapons

Red Balloons To Pop	Reward	Weapon Link
10	Pistol	Click Here
20	Scorpion	Click Here
30	Stubby Shotgun	Click Here
40	Molotov Cocktails
50	AK-47
60	Body Armour	Click Here
70	Flamethrower
80	Equalizer	Click Here
90	Sniper Rifle	Click Here
99	M249

Unlockable Vehicles

Instructions To Unlock	Reward
Complete Mission "Taking Out The White Trash"	Quad
Complete Mission "From Zero To Hero"	Little Willie
Complete Mission "From Zero To Hero"	Splitz-6 ATV
Complete Mission "Unfriendly Competition"	Quad
Complete Mission "White Lies"	Bovver 64
Complete Mission "Kill Phil"	Bulletproof Stretch
Complete Side Mission "Beach Patrol"	Bulletproof BF Injection