I wish I remembered more but I have not played in years. Not sure it even runs in Win 7. I had collected tips for Xcom from a magazine and threw them out last week.
Maybe you can find hints from doing a google search. Most of what I remember from Xcom 1 What I remember: 1. You only need one of anything to research, sell the rest for money or use it.
2. Go slowly and make sure there is someone on watch. If you have 2 people, move one guy up to half of his movement points and do not move the other guy. If something shows up, the guy that did not move can react to enemies. Next move, move the guy that did not move and do not move the other guy.
3. Save often.
4. Always have some rookies on your team, they need training too. Wish I could remember more.
You might like Clive Barker's "The Undying", the graphics are old school but it still has lots of atmosphere. Some of the gameplay elements are old school like an over reliance on jumping. I know a cheat that allows me to get past that. Undying works fine in Win7.
Hellgate london is buggy but if you look past them there is a pretty good shooter. Things have popped up out of the ground in front of me and I have jumped. If you have a 64 bit computer you do not need the cd to play and if you have a directx 10 video card or higher you will see some cool eyecandy. If you decide to install the game add the 2 patches first and then play. There are some big changes between the first and 2nd patch.
Mate, I love this game. It's one of those jewels I've finished and I keep reinstalling for some extra fun from time to time. It's amazing with such huge fandom there is nearly no good fanart for this game.
We need a rebuild of the original just upgrading the graphics. Whoever does that will receive so mucho love, jaja.