I second this. The OpenXCom project has implemented this; unless it's a design choice, I don't see why we shouldn't have this option, too. There could be an option in the Gameplay Options called 'custom design first base' or something, which those people who prefer to design their own first base could toggle.
short: It IS a design choice.
I was ignoring this thread because it didn't have anything to consider, but now as I see, I should clean up these things before you start voting or so.
We had such an option up to maybe 2.2. Buildings were not free but could be instantly built. We removed this options for several reasons:
1. Storyline: You get the control of PHALANX and the (already existing) base, NOT you are building it. And even if you were the founder of PHALANX you would need time to build up a base. If it takes 10 days to build a facility during the game how could you build it in 0 seconds on start. And as a military officer you cannot demand a specific base layout, facilities or equipment. You get what you get.
In fact the ability to choose the base location anywhere on the globe already harms this point which I don't like either. I'm thinking about a feature which offers you 2 random locations per nation to select your 1ST base. It would be more realistic. (Some of you will probably hate it.)
2. Gameplay: The "free build" option we have allowed to build anything you could afford instantly and money was not a limit at this stage. So not just 1 Interceptor Hangar, 1 Laboratory, and so, which are in the default layout. This could give the player an unfair advance in the campaign compared to those are using the default layout. (At that time UFOs were stored in base, one could set up UFO stores instantly too). So it was considered as a CHEAT.
To add a bit more variability to the game, I plan creating a few more initial base layouts with about the same building sets (maybe 1 or 2 more/less) and select one randomly for 1st base.
-geever