For weapons and stuff like that why dont you just cheat.
Cheat Codes
Enter these during gameplay without pausing:Code Effect
R1, R2, L1 , X, Left , Down, Right, Up, Left, Down, Right, Up $250,000, full health and armor
R2, Circle, R1, L2, Left R1, L1, R2, L2 Aggressive Traffic
up,x,triangle,x,triangle,x,square,R2,right all taxis get nitro + jump up when you press L3
Right, R1, Up, L2, L2, Left, R1, L1, R1, R1 All Traffic Lights Stay Green
Triangle, L1, Triangle, R2, Square, L1, L1 All Vehicles Invisible (Except Motorcycles)
SQUARE, L1, R1, RIGHT, X, UP, L1, LEFT, LEFT always midnight (time stuck at 00:00)
x,x,square,r1,l1,x,down,left,x andrenaline mode
L1, L2, L2, Up, Down, Down, Up, R1, R2, R2 Any vehicle you punch this in, can blow up anything like a tank.
SQUARE, RIGHT, SQUARE, SQUARE, L2, X, TRIANGLE, X, TRIANGLE Attracts Prostitutes with Sex Toys/Gimp Suit
Circle, L2, Up, R1, Left, X, R1, L1, Left, Circle Black Traffic
Square, R2, Down, Down, Left, Down, Left, Left, L2, X Cars Float Away When Hit
square, down, L2, up, L1, circle, up, x, left Cars Fly
Right, R2, Circle, R1, L2, Square, R1, R2 Cars on Water
Triangle, Triangle, L1, Square, Square, Circle, Square, Down, Circle Civilians are fast food workers & clowns, CJ is a clown, cars are pizza scooter, BF Injection, HotKnife, Tug, Quad, etc.
Right, L2, Down, R1, Left, Left, R1, L1, L2, L1 Commit Suicide
R2, L2, R1, L1, L2, R2, Square, Triangle, Circle, Triangle, L2, L1 Destroy Cars
Up, Up, Down, Down, Square, Circle, L1, R1, Triangle, Down. Everyone bikini babes, all cars beach cars, Cj in shorts and flipflops.
Right, R1, Up, L2, L2, Left, R1, L1, R1, R1 Faster Cars
Circle, Circle, L1, Square, L1, Square, Square, Square, L1, Triangle, O, Triangle Faster Clock
Triangle, Up, Right, Down, L2, L1, Square Faster Gameplay
R2, Circle, Up, L1, Right, R1, Right, Up, Square, Triangle Flying Boats
R2, X, L1, L1, L2, L2, L2, X Fog
up, up, square, L2, right, x, R1, down, R2, circle Full Weapon Aiming Whilst Driving
Circle, Right, Circle, Right, Left, Square, X Down Gives you an automatic six star wanted level
square,square,R2,left,up,square,R2,X,X,X Improve Suspension
up, L1, R1, up, right, up, x, L2, x, L1 Increase car speed
Down, X, Right, Left, Right, R1, Right, Down, Up, Triangle Infinite health, still hurt from explosions, drowning, and falling.
Down, Left, L1, Down, Down, R2, Down, L2, Down Infinite Lung Capacity
Left, Right, L1, L2, R1, R2, Up, Down, Left, Right Jetpack
Up, Up, Triangle, Triangle, Up, Up, Left, Right, Square, R2, R2 Jump 10 times higher
Triangle, Square, Circle, Circle, Square, Circle, Circle, L1, L2, L2, R1, R2. Jump 100 feet in air on bike
CIRCLE, RIGHT, CIRCLE, RIGHT, LEFT, SQUARE, TRIANGLE, UP Locks wanted level at however many stars you have. They will NEVER increase or decrease, not even with bribes/cheats. Still get attacked in impound.
R1, R1, Circle, R2, Up, Down, Up, Down, Up, Down Lower Wanted Level
Triangle, Up ,Up, Left, Right, Square, Circle, Down Max Fat
triangle,up,up,left,right,square,circle,left Max Muscle
R2, X, L1, L1, L2, L2, L2, Square Morning
SQUARE, L2, R1, TRIANGLE, UP, SQUARE, L2, UP, X Never become hungry
R2, X, L1, L1, L2, L2, L2, Triangle Night
L2, Up, R1, R1, Left, R1, R1, R2, Right, Down No citizens or cops, only gang members having gun fights
Triangle, Up, Up, Left, Right, Square, Circle, Right No Muscle or Fat
X, Down, Up, R2, Down, Triangle, L1, Triangle, Left No Peds, Hardly any traffic, Parked cars still spawn
R2, X, L1, L1, L2, L2, L2, Down Noon
Left, Left, L2, R1, Right, Square, Square, L1, L2, X Orange Sky
R2, X, L1, L1, L2, L2, L2, Square Overcast
Down, Up, Up, Up, X, R2, R1, L2, L2 Pedestrian Attack (cannot be turned off)
Down, Left, Up, Left, X, R2, R1, L2, L1 Pedestrian Riot (cannot be turned off)
R2, R1, X, Triangle, X, Triangle, Up, Down Pedestrians have weapons
X X Down R2 L2 O R1 O Square Peds become asian dudes with Katana's. Mostly black cars and motorcycles patrol the streets.
Triangle, R1, R1, Left, R1, L1, R2, L1 Perfect Handling
Circle, L1, Down, L2, Left, X, R1, L1, Right, Circle Pink Traffic
Right, L2, L2, Down, L2, Up, Up, L2, R2 Prostitutes pay you instead of you paying them
R1, R1, Circle, R2, Right, Left, Right, Left, Right, Left Raise Wanted Level
DOWN, SQUARE, UP, R2, R2, UP, RIGHT, RIGHT, UP Recruit Anyone (9mm)
R2, R2, R2, X, L2, L1, R2, L1, DOWN, X Recruits Anyone (w/Rockets)
Up, Down, L1, L1, L2, L2, L1, L2, R1, R2 Sand Storm
Triangle, Up ,Up, Left, Right, Square, Circle, Right Skinny
Triangle, Up, Right, Down, Square, R2, R1 Slower Gameplay
Right, Up, R1, R1, R1, Down, Triangle, Triangle, X, Circle, L1, L1 Spawn a Monster
Left, Right, L1, L2, R1, R2, R2, Up, Down, Right, L1 spawn a parachute
Up, Right, Right, L1, Right, Up, Square, L2 Spawn a Ranger
Circle, Circle, L1, Circle, Circle, Circle, L1, L2, R1, Triangle, Circle, Triangle Spawn A Rhino
R2, Up, L2, Left, Left, R1, L1, Circle, Right Spawn a Stretch
Down, R1, Circle, L2, L2, X, R1, L1, Left, Left Spawn Bloodring Banger
Circle, L1, Up, R1, L2, X, R1, L1, Circle, X Spawn Caddy
R2, L1, L1, RIGHT, RIGHT, UP, UP, X, L1, LEFT spawn dozer
R1, circle, R2, Right, L1, L2, X (2), Square, R1 Spawn Hotring Racer #1
R2, L1, Circle, Right, L1, R1, Right, Up, circle, R2 Spawn Hotring Racer #2
Up, Right, Right, L1, Right, Up, Square, L2 Spawn Rancher
Triangle, Triangle, Square, Circle, X, L1, L1, Down, Up Spawns Hydra
Left, Left, Down, Down, Up, Up, Square, Circle, Triangle, R1, R2 Spawns Quadbike
Triangle, Triangle, Square, Circle, X, L1, L2, Down, Down Spawns Vortex
R2, X, L1, L1, L2, L2, L2, Circle Storm
Circle, Up, L1, L2, Down, R1, L1, L1, Left, Left, X, Triangle. Stuntplane
Up, Left, X, Triangle, R1, Circle, Circle, Circle, L2 Super Punch
L1 L1 R1 R1 L2 L1 R2 Down Left Up Turns All Vehicles Into Country Vehicles
Down, R2, Down, R1, L2, Left, R1, L1, Left, Right Unlock Romero
Circle, R1, Circle, R1, Left, Left, R1, L1, Circle, Right Unlock Trashmaster
R1, R2, L1, R2, Left, Down, Right, Up, Left, Down, Right, Up Weapons 1
R1, R2, L1, R2, Left, Down, Right, Up, Left, Down, Down, Left Weapons 2
R1, R2, L1, R2, Left, Down, Right, Up, Left , Down, Down, Down Weapons 3
That`d come in handy in SA. Infinite ammo rules, though! 
