I played Arrival today actually. I kept trying to get the achievement for surviving all the waves when they all start attacking you, but fuck. I'm playing as an Adept on Hardcore difficulty and it's fucking impossible. Even cornering myself all the way to the left of the room, spamming the fuck out of Reave and cleaning out the room with the rocket launcher right before the heavy mech walks in, it is a pain in the fucking ass. I might try again later with the M920 Cain and just nuke the whole front of the room to high hell on that wave. Can't seem to cause enough damage fast enough. And by the way... that M920 Cain is my new favorite toy. Never really used it much, but there's really no better way to go. I took down half the Human Reaper's health in one shot, completely took down the derelict reaper's drive core with one shot, straight up DESTROYED Donovan Hock's bullshit plane in one shot. That thing is a fucking mad man.