There is a new site domain that this site will direct to going up. It's still in the works, you'll have to ask Sarge when it is ready.
As for the squads, in the interest of combining everyone's ideas and finding a middle ground, what if X-COM missions contain a non-discript number of soldiers depending on the mission, and when you write your story, your focusing on a specific pod. For example, for a downed UFO, based on the size of it, it's condition, and soldier availability, the Commander sends out a squad of a dozen soldiers.
If we decide on controlling a single soldier, then your story will focus on them.
If we decide on control multiple soldiers, for example the original four, then the larger squad would break into three squads of four, and the senerio I give would detail the specific aliens your squad of four will encounter, with what happens to the other eight soldiers being incidental and up to me to figure out
And if you don't want to control four characters, then don't. I can tailor how I present the mission to you based how many people you control, let's say a minimum of one and a max of four, based on your availability. Everyone would still be at the main X-COM HQ, so they could all interact, and if two or three of you say you'll be available for the same mission, I could design one for a mixed group.
So if one of you controls or character, one of you controls two, and one of you controls four, and you want to write a mission together, I could design a mission for you in which the person with four people has two of them sent out, and the other two get one each, and you form a squad of four for that mission.
On the other hand, if you guys just want to go with the old one character each, I'm cool with that too, as sometimes simplicity is the best option. I am here to please.