Yeah, I was planning AI will spawn a couple of units and then wait for some amount of time to attack the player's base. But later I made it continuously spawning cells to be static and defend the base, the spawn time was set too long I suppose, thus most of the times it seemed like the AI base stop spawning already...
The virus and bacteria alike units are there to be killed by worker cells and you gain resources from them, and they will spawn over time at certain area. They were originally planned to have ability to fight back.
I also think that the destroyer cell can do some tweaking, especially the way they attack, but I was doing some GUI designs and basic RTS mechanism, thus I made it to do AOE attacks.
Should these GUI things, RTS mechanism properly done earlier and having a little bit extra time to spare , I could have done the things I listed out above and some other things planned before, but I guess that's too much for me to do especially for the first time doing RTS. I was glad that I submitted this game on time, barely 15 seconds left due date.
Anyway, thanks for providing feedback and you took your time to enjoy many aspects of the game!