So Telekinetic Assault and Assault Rifle are both assault based so they would cancel each other out, along those same lines Two-Gun Mojo would negate Particle Beam Rifle. Leaving Lightning Arc, which would promptly leave in a flash. Which would leave us with a sad empty room.
The Customization is almost a given to be the best part but other then that my favorite thing to do is sit on the wall at defender's little station facing the powerhouse and watch what comes out of it.
That has also been bugging me ever since dockside came out as an alert. Though I do find it amussing when there are two or more people that want to photo bomb the alert at the end and they end up fighting with each other over that 'speical' spot.