Alpha Basilisk needs a hefty increase in spawn rates on Aberration. It is way too rare. Since the launch of the map I have only managed to find 2 Alpha Basilisk! It is absurd. I would also like to mention that I have spent hundreds of hours on the map, so amount of gameplay is not lacking. The tribute is needed along with Alpha Reaper (another hard to get one, since you need 1 person on each surface to check for a spawn) to summon Alpha Rockwell. Without this, progression is lacking.