Here is the full list of all 12 2013: Infected Wars trophies - there are 8 bronze, 3 silver and 1 gold.
Achieve level 7 in any class
Complete the campaign in ironman mode
Complete Mission 8: Hardwell Park
Avoid all damage from Lazy-eye
Complete Mission 7: Gun Run
Avoid all damage from Imrod
Complete Mission 6: Everything Must Go
Complete Mission 5: Quarantine
Complete Mission 4: Petty's Patties
Complete Mission 3: Escape
Complete Mission 2: Dark Tunnels
Complete Mission 1: Petty Station