Google "Nearly Ultimate Fallout 2 guide". It has everything you need to know about the game.
I'd get the Fallout 2 Restoration Project by killap: it's everything you'll need in one mod: restored gamecontent, bugfixes, high resolution and several improvements.
Fast Shot. What's wrong with it? Sniping relies on crits, and crits are too unreliable to base a character on. (Until you get the Sniper perk, WAY at the end, and then the extra shot you can sqeeuze out due to Fast Shot is worth more.) Apart from that, I'd guess Small Frame.
BTW, read the guide, it offers the same advice.
I literally can not play "Evil" in games, so I recommend a "Good" playthrough.
Thanks.
I finally got the game running with F2 restoration project.
But there are some strange colors on the screen. I am using windows 7.
What can I do to get rid of those colors?
You'll have to be more specific. FO2 works perfectly on Win7, as I'm running it here right now.
Consider signing up on the No Mutants Allowed fora: they know a lot more about Fallout, especially the technical side. (Killap himself resides there, for example.)
For all that's good and holy, read the guide! Literally all of your questions have been answered there! It's the single most comprehensive source of Fallout 2 info right in front of your nose, and you want me to regurgitate everything on this board?
But I would also like to hear YOUR opinion...
I read all of this guide, but for example should I keep Sulik,Vic and Cassidy or should I change one of them for more XP?
Just get them some armour, stimpacks, and change their settings to something more defensive. (And no, I'm not going to tell you how to do that. The game comes with a manual.)