The game creates a lot of scenarios where you're forced to guess and shoot a block, especially late game. It makes it extremely frustrating to play as a puzzle game, which is what i have the most enjoyment doing.

It gets tough to keep track of ones you know are infected, especially in very large areas and very small areas

I tried one mission and a cell spawned a single spinning flashing virus that was invulnerable and reflected shots. This was my second area. How are you supposed to beat that and why wasn't there any warning?

I feel like I've played time and time again going through endless cycles of molecule upgrades and I still have no clue what the CMASS molecule is or how to get 2 of them. Anyone know what upgrade it is?

What is the point of the clusters tab in the codex? I see a whole bunch of data there but I have no idea if it plays any importance in the game. Thank you in advance if anyone knows.