There are 13 Trophies that can be collected.

Bronze

Trigger Happy
Get 30 firetrap kills in one Survival match

Combo King
Do 10 combos of 20 hits or more

Gimmick Free
Kill a Survival Boss with no traps or grenades

No Bargains
Buy nothing for 10 straight waves of Survival

Up Close and Personal
Beat a Campaign level with no ranged attacks

Shopaholic
Buy everything in Survival Mode

The First Dozen
Kill 12 enemies

Shank, SMASH!
Kill 50 enemies with the heavy object smash

Freedom Fighter
Rescue 50 Civilians From The Militia

Silver

Ultimate Survivalist
Defeat all the waves in any Survival Mode map

Too Easy
Complete Campaign Mode on Hard difficulty

Zombie Killer
Reach the zombie wave in each Survival map

Gold

The Story Ends
Complete Campaign Mode on Normal difficulty

http://www.ps3trophies.com/forums/playstation-trophy-news/11433-shank-2-trophy-list.html