The Steel & Titanium Pack Add-on for Killzone 2 has 12 trophies - 12 bronze.
Repair 5 objects in Wasteland Bullet during one round
Repair 5 objects in Vekta Cruiser during one round
Kill 5 enemies while cloaked in Vekta Cruiser during one round
Kill 5 enemies while cloaked in Wasteland Bullet during one round
Kill 5 enemies while disguised in Wasteland Bullet during one round
Kill 5 enemies while disguised in Vekta Cruiser during one round
5 allies spawn on your spawn grenade in Vekta Cruiser during one round
5 allies spawn on your spawn grenade in Wasteland Bullet during one round
Revive 5 allies in Wasteland Bullet during one round
Revive 5 allies in Vekta Cruiser during one round
Boost 5 times in Vekta Cruiser during one round
Boost 5 times in Wasteland Bullet during one round