If these "non-creative cheese teams" have been around for so long, no one has any reason to be whining, because they have had forever to prepare. Co-op allows you to partner with someone who has the cards needed for the dungeon that you might not have so no, you don't have to have a very specific set of cards. You can literally make a team of farmable cards, and sit with your thumb up your ass, while someone carries you through the dungeon. Let me guess, Machine Zeus isn't "fair" because you might actually have to try for that one too. If you DON'T think the radar guerrillas as a whole are fair, you have a false sense of entitlement, which seems to be the case considering you think A3 should also have a 100% drop rate as well. Then again, this is the era where everyone needs their participation trophy so I'm not sure why I would be surprised.