I know there are some die hard alien fans around lol, so I just wanted to say this deck can jump in the tier list maybe up to tier 0... only if they give us Alien Fortress Gol'gar.
Damn, that thing is strong... fortress from ocean space.
Overlord+Golgar is a scary duo. They just shoot A-Counters at everyhing that moves before bouncing backrow all over the place. As an alien enthusiast, I can confirm that once we get our boi Ammonite, Aliens will likely jump to tier 3. He turns Recombination to a one card Golgar/Armades, since you can just dump, spray, search and synchro.
I'd say Aliens are already tier 3. The only cards that can give them trouble are canadias and hey trunade (can blow brainwashing and other techs to your hand), so I think they are still viable after some weeks after the season started