Actually, the only thing really needed is return 1% min chance for AI in NCTH beyond weapon range. Everything else is useless because AI doesn't check CTH when deciding best cover position. And if target is so far that the bullet cannot reach it, CTGT will be 0 and soldier will not shoot anyway.

I think that they are a bit on the low side, but I did the old one (80 plus guys) enough times that my opinion probably shouldn't be considered when default values are in question anyway it's probably better to make it a bit too easy then a bit too hard, people like us know where to increase it if we want...

The alternate progress calculation is on by default, at least in latest SCI that I installed, so i left it on. If I'm not wrong it gives everything equal weight but only counts the one criterion that is highest. So it is kinda easy to just wander around aimlessly to increase it a bit, but unless you do that, it can be a bit slower than the standard progression. Which keeps us longer in "sticks and stones as weaponry of choice" phase