Unlock the following bonuses by performing the corresponding tasks:
HOW TO UNLOCK
Complete the game to unlock a Golden Buzzard at Yusef's heliport near the Booth Tunnel.
Golden Super Drop Diamond
After progressing through Yusuf's missions, you will eventually receive his golden Super Drop Diamond as a reward. It will always be available when you need it, and upon entering and exiting the vehicle you will have the Golden SMG in your inventory.
No ammunition limit
Get a 100% game completion.
Shoot all 50 seagulls to unlock the Noose APC at Henrique's construction site.
Complete all base jumps to to unlock a parachute at your apartment.