File:Q4.png In Quake 4, a Gladiator is a massive, 8-foot tall Strogg heavy unit equipped with a shoulder mounted Railgun as well as an arm-mounted plasma blaster. The Gladiator is also equipped with a large, arm-mounted energy shield that is used as defence from frontal attacks. They are first introduced in Perimeter Defense Station, but they will be more common later in the game and often support other smaller Strogg units.