Killzone: Mercenary - Mission 3 (Lightning Strike): Demolition Contract (walkthrough)

Contract loadout requirements: None

The mission requirements:

• Destroy 3 petrusite cannisters
• Use a VAN-GUARD to destroy 8 enemy drones
• Achieve a multi kill
• Destroy a dropship

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Destroy 3 petrusite cannisters

Note: The petrusite cannisters will on your radar as a blast icon

• The first petrusite cannisters can be found in the middle of the open space area with the watchtower and snipers after you push a button to access the area at the start of the mission.
• The second petrusite cannisters can be found in the "Generator Room". 
• The third petrusite cannisters is next to the generator where you suppose to defend later in the mission.

Use a VAN-GUARD to destroy 8 enemy drones

Use any of the following Van-Guard Systems will count for this objective, anything else will not:

• Porcupine
• Sky Fury
• Arc Missile

Achieve a multi kill

Kill the groups of enemies in the elevator that will come down to the barrack with an M327 Grenade Launcher; assuming you already eliminated the initial enemies in the barrack so they wouldn't bother you while you wait with your weapon of choices when the elevator door open.  

Unless you (the player) is skilled in some prefer weapon of your choices than uses the above method.

Destroy a dropship

The quickest and the easiest way to destroy the dropship is with a VC11.