Following text is a suggestion to a game mode where one uses LD-classes in PvE

Gremlin invasion!!!! King Krogmo dethroned?!?!

A small group of knights ready to fight each other gets interrupted by a large explosion. Lost knights have to locate the exit in the enormous Krogmo colosseum now filled with monsters. Gremlins have become smart enough to make them selves powerful using robot bodies controlled by motion (like in Avatar). The enemies are harder, but all knights benefit from wearing lockdown classes (striker jetpack, recon, guardian). To make variety in damage type, monsters from the audience will start a riot and fight with the gremlins. To make them harder as well, they rage, move faster and start attacking not necessarily only when close to a knight.

Places you have to pass are lockdown maps, but they flawed from the explosion, almost like in the unknown passage only without the swarms.