GTA Vice City Guardian Angels Walkthrough

Protect Diaz and Lance in Guardian Angels, then chase the escaping biker and return the stolen money. Watch both allies' health during the ambush.

Mission walkthrough

Collect the rifle and take Lance to the deal

Visit the multistorey car park to collect the weapon. After meeting Lance, use a car with a spare seat and drive him to the marked meeting. Armour and ammunition are useful before the shooting begins.
Cover the courtyard

Take the assigned elevated position. When attackers arrive, prioritise enemies who have a clear shot at Diaz or Lance. Short, controlled bursts help avoid firing into your allies. Keep checking both health bars and move your aim between the entrances instead of concentrating on one doorway.
Follow the surviving thief

The final attackers attempt to take the money away on bikes. Once the chase objective appears, get down to the street and use the available Sanchez. Follow the marked rider; there is no benefit in returning to fight enemies behind you.
Recover the briefcase

Use forward fire from the motorcycle when you have a straight line, or close the gap and stop the rider. Collect the money from the ground and take it back to Diaz. Brake before the pickup so you do not overshoot into oncoming traffic.

Diaz and Lance must both survive. During the defence, eliminate the attacker doing immediate damage to an ally before shooting a more distant target.