Maxed out one Research Track.

Researched a Splicer with the Research Camera.

Got through a Gather with no damage and no one getting to the Little Sister.

Defeat 4 enemies with the vehicle in 20 seconds

Plant multiple C4 charges on the APC at the same time and destroy it with one massive detonation

Defeat 20 enemies firing from-the-hip

Beat 'Chapter 7 - Stay in the Light' in less than 9 minutes 30 seconds

Beat 'Chapter 20 - Caravan' in less than 15 minutes

Kill 30 Enemies with the Dragon Sniper

Kill 5 Riot Shield Enemies by Running Over Their Shield

Throw Back a Grenade and Defeat 2 Enemies at Once

Kill 75 Enemies in a Row Without Dying