Ouch!
I'm at the top of August in my current game and so far only had one base attacked (they wiped out a base I had just started so there wasn't even a battle). I was expecting more base attacks, so I'm not sure if I'm doing everything right or the aliens are just lousy at base recon.
Anyway, the basis for this suggestion is to make the player stop and think about which and how many troops to send out on missions. If base attacks don't seem to be much of a real threat (as seems to be the case in my current game), then it just becomes a cram-as-many-guys-as-can-fit-in-the-Skyranger routine.
In August with only one base attack!!! what difficulty level are you playing, if i may ask.
I am playing in superhuman, and let me tell you i have had at least 5 base attacks and i think i am only in June, maybe May.
The aggressiveness of the AI is good, but they do seem to try to catch you off guard, like i said in the previous post i had to defend a base with 3 rookies and i actually lost that battle (but due to a bug didn't lose the game)
It would be nice to make the player think a little harder, what if when my main squad is out i get attacked? to make sure you have at least a decent squad to defend the base.