Defeat SEWERJUNK without using the flamethrower.

Find 15 secrets in the game.

Destroy 5 crates with a single grenade.

Destroy 5 trucks in the north parking lot at the barracks before Machine Mike does with his tank.

Kill X Human-Piranha-hybrid things with the shredders.

Craft a Molotov cocktail.

Destroy 5 drones by punching them.

Sleep 20 guards.

Neutralize 5 guards using the slingshot.

Obtain Robert's photographs.

Reach level 8.

Reach level 6.