Here is the full list of all 20 Alien Rage trophies - there are 20 bronze.
Complete single player campaign on Brutal difficulty
Complete single player campaign on any difficulty level
Defeat all Bosses
Defeat Vorus God Mech
Unlock all player perks
Defeat DF9 Sentry Mech
1500 Total Kills
Kill an enemy with every weapon
Use all weapons
Find all weapons
Defeat Vorus Primus
Reach a player score of 25,000,000
Defeat GX-7 Destroyer Prototype
Defeat AA-19 Combat Mech
Defeat Mk XII Heavy Mech
Defeat Vorus Gladiator
Defeat Security Turrets
Defeat Vorus Centurion
Unlock first Perk
Find a new weapon