While enjoying the game, I often feel that something is missing—specifically the absence of Electronic Assembly Machine 2 and 4, Sniper Turret 2 and 4, and some Tier 6 buildings.
This gap makes progression feel a bit incomplete.
In particular, the lack of Electronic Assembly Machine 2 and 4 is inconvenient. Whenever I want to upgrade my factories, I end up skipping those steps and just relying on the regular Assembly Machines instead, since switching setups becomes unnecessarily bothersome.