The Broken Mirror Pack Add-on for Warhawk has 4 trophies - 3 silver and 1 gold.
Destroy an enemy Warhawk with the APC's E-POD shield.
Drive an APC into the enemy's home base, then have at least one teammate spawn into that APC.
Break an enemy E-POD shield using the Lightning Shell.
Using a Warhawk, shoot down an enemy Warhawk in the central gorge in Vaporfield Glacier.