Here is the full list of all 12 Rogue Stormers trophies - there are 7 bronze, 4 silver and 1 gold.
Recruit El Cazador
Kill 75 Orc Grenadiers and 25 Orc Minethrowers
Destroy 150 Sharkopede Grubs
Recruit Stabbygale
Collect a total of 20,000 gold pieces to synergize your assets for maximum profit!
Recruit Camille
Kill 50 Orc Slavehunters
Kill 2500 Goblins
Kill 1000 Goblins
Recruit Presto
Heal a total of 250 HP
Complete the game 20 times